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february 2006 rev 2 1/17 17 ST6G3238E dual supply level translator for sd/ minisd/ t-flash with 8kv contact discharge esd protection features high speed: t pd = 4.4ns (typ.) at t a = 85c v ccb = 2.7v v cca = 1.8v low power dissipation: i cca = i ccb = 5a (max.) at t a = 85c balanced propagation delays: tplh tphl power down protection on inputs and outputs 26 ? series resistor on a side emi filter on b side integrated pull-up and pull-down resistor on b side operating voltage range: ?v cca (opr) = 1.4v to v ccb ?v ccb (opr) = 1.4v to 3.6v latch-up performance exceeds 500ma (jesd17) esd protection for card side (b port, cd and wp pins) 8kv, iec 61000-4-2 esd or contact discharge: hbm > 15kv (mil std 883 method 3015); esd protection for a-port: hbm > 2kv (mil std 883 method 3015); r o hs compliant for tfbga25 package description the ST6G3238E is a dual supply low voltage cmos level translator for sd/ minisd/ t-flash fabricated with sub-micron silicon gate and five- layer metal wiring c 2 mos technology. designed for use as an interface between a 3.3v bus and a 2.5v or 1.8v bus in a mixed 3.3v/1.8v, 3.3v/2.5v and 2.5v/1.8v supply systems, it achieves high speed operation while maintaining the cmos low power dissipation. the a port is designed to track v cca . the b port is designed to track v ccb . this device is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by cmd-dir/ data0-dir/ dat123-dir inputs. the b- port interfaces with the 3v bus, the a-port with the 2.5v and 1.8v bus. all inputs are equipped with protection circuits against static discharge, giving them 2kv (on a- side except cd and wp pins) and 15kv on (b side, cd and wp pins) esd immunity and transient excess voltage. see the section on integrated esd protections and resistors for more information. tfbga25 tssop24 www.st.com order codes part number package tape and reel ST6G3238E tssop24 ST6G3238Ettr ST6G3238E tfbga25 ST6G3238Etbr
contents ST6G3238E 2/17 contents 1 logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin connection and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 pins function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 dc and ac parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 i/o and test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ST6G3238E logic diagram 3/17 1 logic diagram figure 1. block diagram table 1. integrated esd protection and resistor on b-side resistors value bi-directional zener diodes r1, r2, r3, r4, r5, r6 40 ? vbr min. 14v @ 1ma tolerance 20% line capacitance < 20 pf r10, r11, r12 70k ? r9 15k ? r7 470k ? tolerance 30% table 2. integrated pull-up resistors on wp and cd pins on a-side resistors value r13 100k ? r14 100k ? tolerance 30% v a-side v ccb b - side r1 r2 gnd wp cd r13 r14 v cca gnd clk dat0 dat1 dat2 dat3 cmd dat123-dir dat1.h dat2.h dat3.h clk.h clk-f data0-dir dat0.h cmd-dir cmd.h r7 r12 r11 r10 r9 r3 r4 r5 r6
pin connection and function ST6G3238E 4/17 2 pin connection and function figure 2. pin connection (top through view for tfbga and tssop) 1 2 3 4 5 a b c d e 1 2 3 4 5 6 7 8 9 10 24 23 22 21 20 19 18 17 16 15 11 12 14 13 dat0 - dir v cca cmd - dir cmd.h dat0.h dat1.h dat2.h dat3.h clk - f clk.h gnd nc nc gnd dat123 - dir wp clk v ccb cd cmd dat0 dat1 dat2 da t3 1 2 3 4 5 a dat2.h cmd- dir dat0. dir nc dat2 b dat3.h nc v cca v ccb dat3 c clk.h nc gnd gnd clk d dat0.h cmd.h cd cmd dat0 e dat1.h clk-f dat12 3-dir wp dat1 tfbga25 tssop24 tfbga25
ST6G3238E pin connection and function 5/17 2.1 pin function cmd, command is a bi-directional line. the host and card drivers are operating in push- pull. dat0-3, data lines are bi-directional lines. the host and the card drivers are operating in push-pull mode. clk, clock is a host to card signal. clk operates in push-pull mode. feedback (return) clock is feedback clock signal from level shifter to host for controlling delays. cd, card detect, pulls high state of input to v cca . this pin is protected against esd up to 8kv contact. wp, write protect, pulls high state of input to v cca . this pin is protected against esd up to 8kv contact. table 3. pin description tfbga pin n tssop pin n type side symbol name and function a2 3 i a-side cmd-dir command direction high = a to b low = b to a d2 4 i/o a-side cmd.h a-side command d4 22 i/o b-side cmd b-side command a3 1 i a-side dat0-dir data direction high = a to b (write) low = b to a (read) d1 5 i/o a-side dat0.h data input / output d5 21 i/o b-side dat0 data input / output e3 15 i a-side dat123-dir data direction high = a to b (write) low = b to a (read) e1 6 i/o a-side dat1.h data input / output a1 7 i/o a-side dat2.h data input / output b1 8 i/o a-side dat3.h data input / output e5 20 i/o b-side dat1 data input / output a5 19 i/o b-side dat2 data input / output b5 18 i/o b-side dat3 data input / output c1 10 i a-side clk.h clock input c5 17 o b-side clk clock output e2 9 o a-side clk-f clock feedback d3 23 - a-side cd card detect e4 16 - a-side wp write protect b3 2 - a-side v cca power supply b4 24 - b-side v ccb power supply c3, c4 11, 14 - - gnd ground (0v) a4, b2, c2 12, 13 - - nc no connect
summary description ST6G3238E 6/17 3 summary description x = don't care; z = high impedance table 4. truth table function output cmd-dir dat0-dir dat123-dir cmd.h cmd dat0.h dat0 dat1.h dat2.h dat3.h dat1 dat2 dat3 hx xinputoutputxxxxb = a lx xoutputinputxxxxa = b x h x x x input output x x b = a x l x x x output input x x a = b xx h xxxxinputoutputb = a xx l xxxxoutputinputa = b
ST6G3238E maximum rating 7/17 4 maximum rating stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics sure program and other relevant quality documents. table 6. recommended operating conditions table 5. absolute maximum ratings symbol parameter value unit v cca supply voltage -0.5 to 4.6 v v ccb supply voltage -0.5 to 4.6 v v i dc input voltage -0.5 to 4.6 v v i/oa dc i/o voltage (output disabled) -0.5 to 4.6 v v i/ob dc i/o voltage (output disabled) -0.5 to 4.6 v v i/oa dc output voltage -0.5 to v cca + 0.5 v v i/ob dc output voltage -0.5 to v ccb + 0.5 v i ik dc input diode current -20 ma i ok dc output diode current -50 ma i oa dc output current 50 ma i ob dc output current 50 ma i cca dc v cc or ground current 100 ma i ccb dc v cc or ground current 100 ma p d power dissipation 400 mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 260 c symbol parameter value unit v cca supply voltage 1.4 to v ccb v v ccb supply voltage 1.4 to 3.6 v v i input voltage (cmd-dir/dat0-dir/dat123-dir) 0 to v cca v v i/oa i/o voltage 0 to v cca v v i/ob i/o voltage 0 to v ccb v t op operating temperature -40 to +85 c dt/dv input rise and fall time (1) 1. v in from 0.8v to 2.0v at v cc = 3.0v 0 to 10 ns/v
dc and ac parameters ST6G3238E 8/17 5 dc and ac parameters table 7. dc specification symbol parameter test conditions value unit v cca (v) v ccb (v) t a = 25c -40 to 85c min. max. min. max. v ih (a port) high level input voltage 1.4-1.95 v cca to 3.6 0.65v cca 0.65v cca v 1.95-2.7 1.7 1.7 2.7-3.6 2.0 2.0 v il (a port) low level input voltage 1.4-1.95 v cca to 3.6 0.35v cca 0.35v cca v 1.95-2.7 0.7 0.7 2.7-3.6 0.8 0.8 v ih (b port) high level input voltage 1.4 to v ccb 1.4-1.95 0.65v ccb 0.65v ccb v 1.95-2.7 1.7 1.7 2.7-3.6 2.0 2.0 v il (b port) low level input voltage 1.4 to v ccb 1.4-1.95 0.35v ccb 0.35v ccb v 1.95-2.7 0.7 0.7 2.7-3.6 0.8 0.8 v oh (a port) high level output voltage 1.4-3.6 1.4-3.6 i oh = -100a 1.30 v 1.4 1.4 i oh = -1 ma 1.20 1.65 1.65 i oh = -2 ma 1.40 2.3 2.3 i oh = -4 ma 1.90 33 i oh = -8 ma 2.45 v ol (a port) low level output voltage 1.4-3.6 1.4-3.6 i ol = 100a 0.10 v 1.4 1.4 i ol = 1 ma 0.20 1.65 1.65 i ol = 2 ma 0.25 2.3 2.3 i ol = 4 ma 0.40 33 i ol = 8 ma 0.55 v oh (b port) high level output voltage 1.4-3.6 1.4-3.6 i oh = -100a 1.10 v 1.4 1.4 i oh = -1 ma 1.05 1.65 1.65 i oh = -4 ma 1.20 2.3 2.3 i oh = -6 ma 1.75 33 i oh = -8 ma 2.30 note: all a-port i/os and control inputs are powered by v cca . all b-port i/os are powered by v ccb .
ST6G3238E dc and ac parameters 9/17 symbol parameter test conditions value unit v cca (v) v ccb (v) t a = 25c -40 to 85c min. max. min. max. v ol (b port) low level output voltage 1.4-3.6 1.4-3.6 i ol = 100a 0.20 v 1.4 1.4 i ol = 1 ma 0.35 1.65 1.65 i ol = 4 ma 0.45 2.3 2.3 i ol = 6 ma 0.55 33 i ol = 8 ma 0.70 i ia input leakage current for a- side 1.8 2.9 v ia =v cc or gnd dir=high v cd =v wp =v cca 0.5 5 a i ib input leakage current for b- side 1.8 2.9 v clk.h =v cca v cmd = v ccb v dat0,dat1,d at 2 =v ccb v dat3 =gnd dir=low v cd =v wp =v cca 0.5 5 a i cca quiescent supply current for a-side 1.65 3.6 v ia =v cca or gnd v cd =v wp =v cca dir=high 0.5 5 a 1.8 2.5 1.8 2.6 3.6 3.6 i ccb quiescent supply current for b-side 1.65 3.6 v clk.h =v cca or gnd v ib =open dir=low v cd =v wp =v cca 0.5 5 a 1.8 2.5 1.8 3.6 3.6 3.6 i wp wp pin input leakage current 1.8 3.0 v ia =v cca or gnd dir=high v wp =gnd 36 a i cd cd pin input leakage current 1.8 3.0 v ia =v cca or gnd dir=high v cd =gnd 36 a table 7. dc specification
dc and ac parameters ST6G3238E 10/17 table 8. ac electrical characteristics (f = 1mhz, 50% duty cycle, c l = 30pf, r l = 500 ? ) note: v ia = input i/os including clk.h, cmd.h, dat0.h, dat1.h, dat2.h, dat3.h v ib = input i/os including cmd, dat0, dat1, dat2, dat3 symbol parameter test condition t a = -40 to 85 c unit v cca = 1.8 0.15v v cca =1.8 0.15v v cca =2.5 0.2v v ccb =2.5 0.2v v ccb =2.7 0.3v v ccb =2.7 0.3v min. max. min. max. min. max. t plh t phl propagation delay time an to bn 1.0 7.2 1.0 6.6 1.0 6.1 ns t plh t phl propagation delay time bn to an 1.0 8.1 1.0 7.5 1.0 5.0 t oslh t oshl output to output skew time (1)(2) 1. skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either high or low ( t oslh = | t plhm = t plhn |, t oshl = | t phlm ? t phln | ) 2. parameter guaranteed by design. 0.5 0.5 0.5 ns t cdlh t cdhl clock and data skew time 0.5 0.5 0.5 ns f max clock from a to b 52 52 52 mhz from b to a 52 52 52 data from a to b 52 52 52 mbps from b to a 52 52 52 table 9. output slew rate (f = 1mhz, 50% duty cycle, cl=30pf, rl=500 ? ) symbol parameter from to test condition t a = -40 to 85 c unit v cca = 1.8v 0.15v v ccb = 3v 0.3v min. max. t r rise time 20% 80% 3 ns t f fall time 80% 20% 3 ns table 10. capacitance characteristics symbol parameter test condition value unit v ccb (v) v cca (v) t a = 25 c -40 to 85 c min. typ. max. min. max. c inb input capacitance open open 9 pf c i/oa input/output capacitance for a-side 3.3 2.5 17 pf c i/ob input/output capacitance for b-side 3.3 2.5 33 pf c pd (1) 1. c pd is defined as the value of the ic's internal equivalent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average current can be obtained by the following equation. i cc (opr) - c pd x v cc x f in + i cc /16 (per circuit) power dissipation capacitance 3.3 2.5 f = 10mhz 29 pf 3.3 1.8 29
ST6G3238E i/o and test circuit 11/17 6 i/o and test circuit figure 3. input and output equivalent circuit figure 4. test cicuit table 11. test values test switch t plh , t phl open t pz l, t plz (v cc = 3.0 to 3.6v) 6v t pzl , t plz (v cc = 2.3 to 2.7v or v cc = 1.6 to 1.95v) 2v cc t pzh , t phz gnd
waveforms ST6G3238E 12/17 7 waveforms note: c l = 30pf or equivalent (includes jig and probe capacitance) r l = r1 = 500 ? or equivalent r t = z out of pulse generator (typically 50 ? ) figure 5. waveform - propagation delay (f = 1 mhz, 50% duty cycle) table 12. waveform symbol value symbol v cc 3.0 to 3.6v 2.3 to 2.7v 1.65 to 1.95v v ih v cc v cc v cc v m 1.5v v cc /2 v cc /2 v x v ol +0.3v v ol +0.15v v ol +0.15v v y v ol -0.3v v ol -0.15v v ol -0.15v
ST6G3238E mechanical data 13/17 8 mechanical data in order to meet environmental requirements, st offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com .
mechanical data ST6G3238E 14/17 table 13. tfbga25 mechanical data figure 6. package dimensions dim ref dimension (mm) dimension (inch) min. typ. max min. typ. max a 1.0 1.10 1.16 0.039 0.043 0.046 a1 0.25 0.010 a2 0.78 0.86 0.031 0.034 b 0.25 0.30 0.35 0.010 0.012 0.014 d 2.90 3.0 3.10 0.114 0.118 0.122 d1 2.0 0.079 e 2.90 3.0 3.10 0.114 0.118 0.122 e1 2.0 0.079 e 0.50 0.020 se 0.25 0.010
ST6G3238E mechanical data 15/17 table 14. tssop24 mechanical data figure 7. package dimensions dim ref dimension (mm) dimension (inch) min. typ. max min. typ. max a 1.10 0.043 a1 0.05 0.15 0.002 0.006 a2 0.90 0.035 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 d 7.70 790 0.303 31.102 e 4.3 4.50 0.169 0.177 e 0.65 0.026 h 6.25 6.50 0.246 0.256 l 0.50 0.70 0.020 0.028 k0o 8o0o 8o
revision history ST6G3238E 16/17 9 revision history date revision description of change 10-feb-2006 1 first release 23-feb-2006 2 new template
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