uPSD3212A, uPSD3212C, uPSD3212CV

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52-PIN PACKAGE I/O PORT
The 52-pin package members of the uPSD321x
Devices have the same port pins as those of the
80-pin package except:
Port 0 (P0.0-P0.7, external address/data bus
AD0-AD7)
Port 2 (P2.0-P2.3, external address bus A8-
A11)
Port A (PA0-PA7)
Port D (PD2)
Bus control signal (RD,WR,PSEN,ALE)
Pin 5 requires a pull-up resistor (2k for 3V
devices, 7.5k for 5V devices) for all devices.
JTAG TMS 20 I JTAG pin
1. PLD Macro-cell outputs
2. PLD inputs
3. SRAM stand by voltage in-
put (VSTBY)
4. SRAM battery-on indicator
(PC4)
5. JTAG pins are dedicated
pins
JTAG TCK 16 I JTAG pin
PC2 VSTBY 15 I/O General I/O port pin
PC3 TSTAT 14 I/O General I/O port pin
PC4 TERR_ 9 I/O General I/O port pin
JTAG TDI 7 I JTAG pin
JTAG TDO 6 O JTAG pin
PC7 5 I/O General I/O port pin
PD1 CLKIN 3 I/O General I/O port pin 1. PLD I/O
2. Clock input to PLD and APD
PD2 1 I/O General I/O port pin 1. PLD I/O
2. Chip select to PSD Module
Vcc 12
Vcc 50
GND 13
GND 29
GND 69
USB+ 10
NC 11
NC 17
NC 71
Port Pi n Signal
Name Pin No. In/Out Function
Basic Alternate