895132-IL View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

895132-IL

USB Microcontroller with 64K Bytes Flash Memory

Atmel Corporation 

4.2 Internal Pin Structure

Table 15. Detailed Internal Pin Structure

Circuit(1)

VDD

VDD

Watchdog Output

P

Latch Output

VSS

2 osc

periods

VDD

P1

VDD

P2

VDD

P3

N

VSS

VDD

P

N

VSS

VDD

P

N

VSS

Type

Input

Pins

TST

Input/Output

RST

Input/Output

P1(2)

P2(3)

P3

P4

P53:0

Input/Output

P0

MCMD

MDAT

ISP

PSEN

Output

ALE

SCLK

DCLK

DOUT

DSEL

MCLK

D+

D+

Input/Output

D-

D-

Notes:

1. For information on resistors value, input/output levels, and drive capability, refer to the

Section “DC Characteristics”, page 183.

2. When the Two Wire controller is enabled, P1, P2, and P3 transistors are disabled allowing

pseudo open-drain structure.

3. In Port 2, P1 transistor is continuously driven when outputting a high level bit address (A15:8).

10 AT89C5132

4173E–USB–09/07

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