TDA8008 Datasheet, PDF (7/12 Pages) NXP Semiconductors – Dual multiprotocol smart card coupler

Philips Semiconductors
Dual multiprotocol smart card coupler
Objective specification
TDA8008
SYMBOL
EA/VPP
n.c.
P07/AD7
P06/AD6
P05/AD5
P04/AD4
P03/AD3
P02/AD2
P01/AD1
P00/AD0
P10/T2
P11/T2EX
P12
P13
P14
P15
PIN
DESCRIPTION
65 External access enable/programming supply voltage: EA must be externally held LOW to
enable the device to fetch code from external program memory locations starting with 0000H.
If EA is held HIGH, the device executes from the internal program memory unless the program
counter contains an address greater than 3FFFH (16 kbytes boundary). This pin also receives
the 12.75 V programming supply voltage (VPP) during EPROM programming. If security bit 1
is programmed, EA will be internally latched on reset.
66 not connected
67 8xC51 general purpose I/O port/address/data 7
68 8xC51 general purpose I/O port/address/data 6
69 8xC51 general purpose I/O port/address/data 5
70 8xC51 general purpose I/O port/address/data 4
71 8xC51 general purpose I/O port/address/data 3
72 8xC51 general purpose I/O port/address/data 2
73 8xC51 general purpose I/O port/address/data 1
74 8xC51 general purpose I/O port/address/data 0
75 8xC51 general purpose I/O port/timer, counter 2 external count input and clock output
76 8xC51 general purpose I/O port/timer, counter 2 reload, capture and direction control
77 8xC51 general purpose I/O port
78 8xC51 general purpose I/O port
79 8xC51 general purpose I/O port
80 8xC51 general purpose I/O port
1999 Dec 14
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