参数资料
型号: P87C42
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: UNIVERSAL PERIPHERAL INTERFACE CHMOS 8-BIT SLAVE MICROCONTROLLER
中文描述: 8-BIT, OTPROM, 12.5 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 18/25页
文件大小: 345K
代理商: P87C42
UPI-C42/UPI-L42
AC CHARACTERISTICS
T
A
e
0
§
C to
a
70
§
C, V
SS
e
0V, V
CC
e
V
DD
e a
5V
g
10%;
a
3.3V
g
10% for the UPI-L42 (Continued)
CLOCK
Symbol
Parameter
Min
Max
Units
t
CY
UPI-C42/UPI-L42
Cycle Time
1.2
9.20
m
s
(1)
t
CYC
UPI-C42/UPI-L42
Clock Period
80
613
ns
t
PWH
Clock High Time
30
ns
t
PWL
Clock Low Time
30
ns
t
R
Clock Rise Time
10
ns
t
F
Clock Fall Time
10
ns
NOTE:
1. t
CY
e
15/f(XTAL)
AC CHARACTERISTICS
DMA
Symbol
Parameter
Min
Max
Units
t
ACC
DACK to WR or RD
0
ns
t
CAC
RD or WR to DACK
0
ns
t
ACD
DACK to Data Valid
0
130
ns
t
CRQ
RD or WR to DRQ Cleared
110
ns
(1)
NOTE:
1. C
L
e
150 pF.
AC CHARACTERISTICS
PORT 2
Symbol
Parameter
f(t
CY
)
(3)
1/15 t
CY
b
28
Min
Max
Units
t
CP
Port Control Setup Before Falling Edge of PROG
55
ns
(1)
t
PC
Port Control Hold After Falling Edge of PROG
1/10 t
CY
8/15 t
CY
b
16
125
ns
(2)
t
PR
PROG to Time P2 Input Must Be Valid
650
ns
(1)
t
PF
Input Data Hold Time
0
150
ns
(2)
t
DP
Output Data Setup Time
2/10 t
CY
1/10 t
CY
b
80
250
ns
(1)
t
PD
Output Data Hold Time
45
ns
(2)
t
PP
PROG Pulse Width
6/10 t
CY
750
ns
NOTES:
1. C
L
e
80 pF.
2. C
L
e
20 pF.
3. t
CY
e
1.25
m
s.
18
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