參數(shù)資料
型號(hào): P89C557E4EFB
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 微控制器/微處理器
英文描述: Single-chip 8-bit microcontroller
中文描述: 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 20 MM, 2.70 MM HEIGHT, PLASTIC, SOT-318-1, QFP-80
文件頁(yè)數(shù): 57/72頁(yè)
文件大?。?/td> 374K
代理商: P89C557E4EFB
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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