參數(shù)資料
型號: P83C557E4
廠商: NXP Semiconductors N.V.
英文描述: Single-chip 8-bit microcontroller(單片8位微控制器)
中文描述: 單芯片8位微控制器(單片8位微控制器)
文件頁數(shù): 57/72頁
文件大小: 525K
代理商: P83C557E4
Philips Semiconductors
Product specification
P83C557E4/P80C557E4/P89C557E4
Single-chip 8-bit microcontroller
1999 Mar 02
57
FEEPROM PROGRAMMING AND VERIFICATION CHARACTERISTICS
T
amb
= –40
°
C to +85
°
C, V
DD
= 5 V
±
10%, V
SS
= 0 V (see Figure 53)
SYMBOL
PARAMETER
MIN
MAX
UNIT
1/t
CLK
t
AVWL
t
WHAX
t
DVWL
t
WHDX
t
EHWL
t
WHEL
t
WLWHp
t
WLWHe
t
AVQV
t
ELQV
t
EHQZ
System clock frequency (standard oscillator)
4
6
MHz
Address setup to WE LOW
48t
CLK
48t
CLK
48t
CLK
48t
CLK
48t
CLK
48t
CLK
2.25
Address hold after WE HIGH
Data setup to WE LOW
Data hold after WE HIGH
P2.7 (ENABLE) HIGH to WE LOW
WE HIGH to P2.7 (ENABLE) LOW
WE width (programming)
2.75
ms
WE width (erase)
4.5
5.5
ms
Address to data valid
48t
CLK
48t
CLK
48t
CLK
P2.7 (ENABLE) Low to data valid
Data float after P2.7 (ENABLE) HIGH
0
t
EHWL
Figure 53. FEEPROM Programming/Erase and Verification Waveforms
PROGRAMMING*/Erase*
VERIFICATION*
ADDRESS (programming)
ADDRESS
DATA IN
(programing)
t
DVWL
DATA OUT
t
AVQV
t
EHQZ
t
ELQV
t
AVWL
t
WHAX
t
WHDX
P0.0–P0.7
ALE/WE
P2.7
ENABLE
* For ERASE conditions see Figure 50.
For PROGRAM conditions see Figure 51.
For VERIFY conditions see Figure 52.
t
WHEL
t
WLWHp
t
WLWHe
P1.0–P1.7
P2.0–P2.5
P3.4
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