參數(shù)資料
型號(hào): 935260833557
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, SOT-389-1, LQFP-44
文件頁數(shù): 15/35頁
文件大小: 176K
代理商: 935260833557
1999 Apr 16
22
Philips Semiconductors
Product specication
Low-voltage microcontroller with 63-kbyte
OTP program memory and 2-kbyte RAM
P87CL881H
9
AC CHARACTERISTICS
VDD =3V; VSS =0V; Tamb = 25 to +70 °C; CL = 50 pF for Port 0, ALE and PSEN; CL = 80 pF for all other outputs
unless otherwise specied. All values veried on sampling basis.
SYMBOL
PARAMETER
VARIABLE CLOCK
UNIT
MIN.
MAX.
External program memory
tLHLL
ALE pulse width
tCLK
ns
tAVLL
address valid to ALE LOW
0.5tCLK 10
ns
tLLAX
address hold after ALE LOW
0.5tCLK
ns
tLLIV
ALE LOW to valid instruction in
2tCLK 25
ns
tLLPL
ALE LOW to PSEN LOW
0.5tCLK
ns
tPLPH
PSEN pulse width
1.5tCLK
ns
tPLIV
PSEN LOW to valid instruction in
1.5tCLK 35
ns
tPXIX
input instruction hold after PSEN
0
ns
tPXIZ
input instruction oat after PSEN
0.5tCLK
ns
tAVIV
address to valid instruction in
2.5tCLK 35
ns
tPLAZ
PSEN LOW to address oat
5ns
External data memory
tRLRH
RD pulse width
3tCLK
ns
tWLWH
WR pulse width
3tCLK
ns
tAVLL
address valid to ALE LOW
0.5tCLK
ns
tLLAX
address hold after ALE LOW
0.5tCLK
ns
tRLDV
RD LOW to valid data in
2.5tCLK
ns
tRHDX
data hold after RD
0
ns
tRHDZ
data oat after RD
tCLK
ns
tLLDV
ALE LOW to valid data in
4tCLK
ns
tAVDV
address to valid data in
4.5tCLK 30
ns
tLLWL
ALE LOW to RD or WR LOW
1.5tCLK 15
1.5tCLK +15
ns
tAVWL
address valid to RD or WR LOW
2tCLK
ns
tWHLH
RD or WR HIGH to ALE HIGH
0.5tCLK 5
0.5tCLK +5
ns
tQVWX
data valid to WR transition
0.5tCLK
ns
tQVWH
data valid time WR HIGH
3.5tCLK
ns
tWHQX
data hold after WR
0.5tCLK
ns
tRLAZ
RD LOW to address oat
0ns
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