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UPSD3233 Datasheet(PDF) 43 Page - STMicroelectronics

Part # UPSD3233
Description  Flash Programmable System Devices with 8032 Microcontroller Core
PDF  170 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UPSD3233 Datasheet(HTML) 43 Page - STMicroelectronics

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uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV
PORT Type and Description
Figure 17. PORT Type and Description (Part 1)
AI06653
Symbol
Circuit
Description
In /
Out
RESET
I
• Schmitt input with internal pull-up
CMOS compatible interface
NFC : 400ns
WR, RD,ALE,
PSEN
O
Output only
XTAL1,
XTAL2
I
O
On-chip oscillator
On-chip feedback resistor
Stop in the power down mode
External clock input available
CMOS compatible interface
PORT0
I/O
Bidirectional I/O port
Schmitt input
Address Output ( Push-Pull )
CMOS compatible interface
NFC
xon



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