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UPSD3312D Datasheet(PDF) 24 Page - STMicroelectronics

Part # UPSD3312D
Description  fast 8032 MCU with programmable logic
PDF  272 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UPSD3312D Datasheet(HTML) 24 Page - STMicroelectronics

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Pin descriptions
UPSD33xx
24/272
Doc ID 9685 Rev 7
P4.6
SPITXD
TCM5
19
15
I/O
General I/O port
pin
PCA1-TCM5
SPI Transmit
(SPITxD)
P4.7
SPISEL
PCACL
K1
18
14
I/O
General I/O port
pin
PCACLK1
SPI Slave Select
(SPISEL)
AVREF
70
N/A
I
Reference voltage
input for ADC.
Connect AVREF to
VCC if the ADC is
not used.
RD
65
N/A
O
READ Signal,
external bus
WR
62
N/A
O
WRITE Signal,
external bus
PSEN
63
N/A
O
PSEN Signal,
external bus
ALE
4
N/A
O
Address Latch
signal, external bus
RESET_IN
68
44
I
Active low reset
input
XTAL1
48
31
I
Oscillator input pin
for system clock
XTAL2
49
32
O
Oscillator output
pin for system clock
DEBUG
8
5
I/O
I/O to the MCU
debug unit
Table 2.
Pin definitions (continued)
Port pin
Signal
name
80-Pin
num.
52-Pin
num.(1)
In/Out
Function
Basic
Alternate 1
Alternate 2



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