參數(shù)資料
型號: P89C538NBBB
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: CMOS single-chip 8-bit microcontrollers with FLASH program memory
中文描述: 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 X 1.75 MM, PLASTIC, SOT-307-2, QFP-44
文件頁數(shù): 28/35頁
文件大?。?/td> 221K
代理商: P89C538NBBB
Philips Semiconductors
Preliminary specification
89C535/89C536/89C538
CMOS single-chip 8-bit microcontrollers
with FLASH program memory
1997 Jun 05
28
su00877
V
CC
5V
12V
V
PP
A0–A15
WE
CE
OE
Q7
Q0–Q5
SETUP AUTO PROGRAM/
PROGRAM COMMAND
AUTO PROGRAM & DATA POLLING
τ
VPH
τ
AH1
ADDRESS
VALID
τ
VPS
τ
QES
COMMAND IN
DATA IN
DATA IN
COMMAND IN
DATA
DATA
DATA
DATA POLLING
t
DF
τ
DPA
τ
DH
τ
DS
τ
DH
τ
DS
τ
CEP
τ
CEPH1
τ
CEP
τ
CESP
τ
CES
τ
CESC
τ
AVT
τ
cwc
τ
AS
OV
COMMAD #40H
Figure 22.
Automatic Programming Timing Waveform
A
UTOMATIC
C
HIP
E
RASE
All data in the FLASH memory is erased. External erase verification
is not required. Erasure completion can be verified by DATA polling
and toggle bit checking after automatic erase starts. Device outputs
0 during erasure and 1 after erasure on Q7, Q0 to Q5 (Q6 is for
toggle bit; see toggle bit, DATA polling, timing waveform) are in high
impedance.
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