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C-MOS 16-BIT MICRO COMPUTER
VDD (+5V)
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76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
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GND
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TMP68301AFR-16 (1/4) IL08
GND
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
VDD (+5V) GND
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
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VDD (+5V)
S a
GND
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GND
VDD (+5V)
GND
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
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TMP68301AFR-16 (2/4) (VDD = +5V) PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 I/O I/O I/O I/O O O I I/O I/O I/O I/O I/O -- I/O I/O I/O I/O I/O -- I/O I/O I/O I/O I/O I/O I/O SIGNAL PIN NO. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 I/O -- I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O -- I/O I/O I/O -- I/O I/O I/O I/O I/O I/O I/O I/O SIGNAL GND A15 A16 A17 A18 A19 A20 A21 A22 A23 D15 D14 VDD D13 D12 D11 GND D10 D9 D8 D7 D6 D5 D4 D3 PIN NO. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 I/O I/O I/O I/O O O O -- I I I I/O I -- I/O I/O I/O I/O I/O I/O I/O I/O -- I/O I/O I/O SIGNAL D2 D1 D0 TXD2 TXD1 TXD0 GND RXD2 RXD1 RXD0 PIN NO. 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 I/O I/O I/O I/O I/O I/O O O O I I I I/O I/O -- -- I/O I/O I O O I O I/O I/O I/O SIGNAL IO4/DATA5 IO3/DATA4 IO2/DATA3 IO1/DATA2 IO0/DATA1
HALT RESET BERR CS1 CS0 NOR/EMU
FC2 FC1 FC0 A1 A2 GND A3 A4 A5 A6 A7 VDD A8 A9 A10 A11 A12 A13 A14
IACK2 IACK1 IACK0
INT2 INT1 INT0
RSTO
BCLK VDD IO15/DTR0 IO14/DSR0 IO13/CTS0 IO12/FAULT IO11/PRIME IO10/ACK IO9/BUSY IO8/DSTB GND IO7/DATA8 IO6/DATA7 IO5/DATA6
AS UDS
VDD GND
LDS R/W
CLK TOUT2 TOUT1 TIN BG/IPL1 BGACK/IPL2 BR/IPL0
DTACK
TMP68301AFR-16 (3/4)
97 98 99
BG/ BGACK/ BR/ 35 34 33 32 31 30 29 28 27 25 24 23 22 21 20 19 17 16 15 14 13 11 10
IPL1
A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1
IPL2
IPL0
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 IO15/DTR0 IO14/DSR0 IO13/CTS0 IO12/FAULT IO11/PRIME IO10/ACK IO9/BUSY IO8/DSTB IO7/DATA8 IO6/DATA7 IO5/DATA6 IO4/DATA5 IO3/DATA4 IO2/DATA3 IO1/DATA2
36 37 39 40 41 43 44 45 46 47 48 49 50 51 52 53
INPUT BCLK CLK INT0 - INT2 NOR/EMU RXD0 - RXD2 TIN OUTPUT BG (/IPL1) CS0, CS1 IACK0 - IACK2 TOUT1, TOUT2 TXD0 - TXD2 INPUT/OUTPUT A1 - A23
; ; ; ; ; ;
BAUD RATE CLOCK CLOCK INTERRUPT REQUESTS MODE SELECT RECEIVE DATA TIMER INPUT
; ; ; ; ;
BUS GROUND CHIP SELECTS INTERRUPT ACKNOWLEDGE TIMER OUTPUTS TRANSFER DATA
64 65 66 67 68 69 70 71 73 74 75 76 77 78 79 80
ACK AS BERR BGACK (/IPL2) BR (/IPL0)
BUSY
CTSO, DSRO, DTRO, DSTB D0 - D15 DATA1 - DATA8 DTACK
FAULT FC0 - FC2
87 88 91 92 7 8 9 61 62 58 59 60 84 85 86 96 100 3
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
AS UDS LDS R/W FC2 FC1 FC0 RSTO BCLK RXD2 RXD1 RXD0 INT2 INT1 INT0 TIN DTACK BERR
HALT
IO0 - IO15
LDS
PRIME
IO0/DATA1
TXD2 TXD1 TXD0 IACK2 IACK1 IACK0 TOUT2 TOUT1 CS1 NOR/ CS0 CLK 13
54 55 56 81 82 83 94 95 4 5
RESET RSTO R/W UDS
ADDRESS BUS I/O PORT ADDRESS STROBE BUS ERROR BUS GROUND ACKNOWLEDGE BUS REQUEST I/O PORT I/O PORTS DATA BUS I/O PORTS DATA TRANSFER ACKNOWLEDGE I/O PORT FUNCTION CORDS HALT I/O PORT LOWER DATA STROBE I/O PORT RESET TRANSFER REQUEST READ/WRITE UPPER DATA STROBE
RESET HALT 2 1
EMU
6
TMP68301AFR-16 (4/4)
DTPO, DSRO, IACK0 - IACK2 RXD0 - RXD2 TXD0 - TXD2 RSTO, CTSO
83 - 81 60 - 58 56 - 54 61, 64 - 66
INT0 - INT2
BCLK 62
86 - 84
BR
(/IPL0)
99
BG
(/IPL1)
97
BGACK (/IPL2)
98
INTERRUPT REQUEST RECEIVE CIRCUIT
PRIORITY DECISION CIRCUIT
UART
UART
UART
IPL
BAUD RATE GENERATOR
BAUD RATE GENERATOR
BAUD RATE GENERATOR
INTERRUPT ACKNOWLEDGE CORRESPONDENCE CIRCUIT
INTERRUPT CONTROLLER
PRESCALER
SERIAL I/F INTERRUPT REQUEST
CORE PROCESSOR (68 HC 000)
INNER BUS
INTERFACE
A1 - A23 10, 11, 13 - 17, 19 - 25, 27 - 35
INTERRUPT REQUEST ADDRESS DECODER
INTERRUPT REQUEST D0 - D15 53 - 43 41 - 39 37, 36
TIMER
PARALLEL I/F
DTACK BERR
WAIT CONTROL PRESCALER TIME OUT SUPER VISION CIRCUIT CS GENERATION CIRCUIT
TIMER/ COUNTER TIMER/ COUNTER TIMER/ COUNTER
16BIT BOARD
RESET HALT
NOR/
2
1
CENTORONICS CORRES PONDENCE CIRCUIT
AS UDS LDS R/W
87 88 91
92 FC0 - FC2 9-7
6
EMU
CLK 93 5, 4 100, 3 96 TIN 95, 94 TOUT1, TOUT2 71 - 64, 80 - 73 IO0 - IO15
CS1 CS0
DTACK BERR

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