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AT89LP51RB2 Datasheet(PDF) 76 Page - ATMEL Corporation

Part # AT89LP51RB2
Description  8-bit Microcontroller Compatible with 8051 Products
PDF  254 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP51RB2 Datasheet(HTML) 76 Page - ATMEL Corporation

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76
3722A–MICRO–10/11
AT89LP51RB2/RC2/IC2 Preliminary
P3.7
P3M0.7
P3M1.7
RD
P4.0
P4M0.0
P4M1.0
SCL
open-drain
P4.1
P4M0.1
P4M1.1
SDA
open-drain
P4.2
P4M0.2
P4M1.2
XTAL2B
OSCB must be disabled or in
internal oscillator or external clock
modes to use P4.2(AT89LP51IC2)
P4.4
P4M0.4
P4M1.4
ALE
Set AO in AUXR to use P4.4
P4.5
P4M0.5
P4M1.5
PSEN
P4.6
P4M0.6
P4M1.6
XTAL1A
OSCA must be set to internal RC
mode to use P4.6
P4.7
P4M0.7
P4M1.7
XTAL2A
OSCA must be set to internal RC
or external clock modes to use
P4.7
Table 12-7.
Port Pin Alternate Functions
Port Pin
Configuration Bits
Alternate
Function
Notes
PxM0.y
PxM1.y



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