at87f51-20pi ATMEL Corporation, at87f51-20pi Datasheet - Page 8

• Manufacturer Part Number: at87f51-20pi
• Description: At87f51 8-bit Microcontroller With 4k Bytes Quickflash
• Manufacturer: ATMEL Corporation

QuickFlash Programming and Verification Waveforms
8
P1.0 - P1.7
P2.0 - P2.3
ALE/PROG
(RDY/BSY)
(ENABLE)
PORT 0
P3.4
P2.7
EA/V
PP
t
t
SHGL
AVGL
Not
t
EHSH
V
PROGRAMMING
PP
t
DVGL
ADDRESS
DATA IN
t
GLGH
t
GHBL
t
GHDX
t
ELQV
t
GHAX
t
GHSL
LOGIC 1
LOGIC 0
BUSY
t
WC
VERIFICATION
DATA OUT
ADDRESS
t
AVQV
READY
t
EHQZ