at89c55-16qa ATMEL Corporation, at89c55-16qa Datasheet - Page 15
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
at89c55-16qa
Manufacturer Part Number
at89c55-16qa
Description
8-bit Microcontroller With Bytes Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C55-16QA.pdf
(24 pages)
- Current page: 15 of 24
- Download datasheet (606Kb)
Flash Programming Modes
Note:
Mode
Write Code Data
Read Code Data
Write Lock
Chip Erase
Read Signature Byte
1. Chip Erase requires a 10-ms PROG pulse.
Bit-1
Bit-3
Bit-2
RST
H
H
H
H
H
H
H
PSEN
L
L
L
L
L
L
L
ALE/PROG
H
H
(1)
EA/V
H/12V
H/12V
H/12V
H/12V
H/12V
H
H
PP
P2.6
H
H
H
H
L
L
L
P2.7
H
H
H
L
L
L
L
P3.6
H
H
H
H
L
L
L
P3.7
4-183
H
H
H
L
L
L
L
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