w78e52b Winbond Electronics Corp America, w78e52b Datasheet - Page 18

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w78e52b

Manufacturer Part Number
w78e52b
Description
8-bit Mtp Microcontroller
Manufacturer
Winbond Electronics Corp America
Datasheet

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Timing Waveforms, continued
Port Access Cycle
Program Operation
(OECTRL)
(A15... A0)
SAMPLE
(A7... A0)
XTAL1
INPUT
PORT
P2, P1
ALE
P3.7
(OE)
P3.3
Vpp
P3.6
(CE)
P0
V
V
V
V
V
V
V
V
V
V
Vcp
V
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
IH
T
T
PDS
T
T
VPS
AS
DS
Program
Data In
T
PWP
S5
Address Stable
T
T
DH
PDH
T
OCS
T
OES
Program
Verify
- 18 -
T
OCH
T
OEV
D
T
OUT
AH
S6
T
DFP
Preliminary W78E52B
Address Valid
Read Verify
DATA OUT
T
PDA
S1
Data Out

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