UPSD3233 STMicroelectronics, UPSD3233 Datasheet - Page 48
UPSD3233
Manufacturer Part Number
UPSD3233
Description
Flash Programmable System Devices with 8032 Microcontroller Core
Manufacturer
STMicroelectronics
Datasheet
1.UPSD3233.pdf
(175 pages)
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UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
PORT Type and Description
Figure 17. PORT Type and Description (Part 1)
48/175
WR, RD,ALE,
PSEN
XTAL1,
Symbol
RESET
XTAL2
PORT0
Out
In /
I/O
O
O
I
I
Circuit
NFC
xon
• Schmitt input with internal pull-up
Output only
CMOS compatible interface
NFC : 400ns
On-chip oscillator
On-chip feedback resistor
Stop in the power down mode
External clock input available
CMOS compatible interface
Bidirectional I/O port
Schmitt input
Address Output ( Push-Pull )
CMOS compatible interface
Description
AI06653