參數(shù)資料
型號(hào)： 935222940112
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 24 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 53/80頁(yè)
文件大小： 446K
代理商： 935222940112
1997 Dec 15
57
Philips Semiconductors
Product specication
8-bit microcontrollers
P83C524; P80C528; P83C528
21.2
AC Characteristics 24 MHz version
See notes 1, 2 and 3.; Cl = 100 pF for Port 0, ALE and PSEN; CL = 80 pF for all other outputs unless otherwise
specied.
Notes to the AC Characteristics 16 and 24 MHz versions
1. For the AC Characteristics the following conditions are valid:
a) P83C52x EBx: VDD =5 V ±10%; VSS =0 V; Tamb = 0 to +70 °C; tCK min.=63ns
b) P83C52x EFx: VDD =5V ±10%; VSS =0V; Tamb = 40 to +85 °C; tCK min. = 63 ns.
2. tCK min. = 1/f max. (maximum operating frequency); tCK = clock period (see section for timing symbol denitions).
3. The maximum operating frequency is limited to 16/24 MHz and the minimum to 3.5 MHz (all versions Ixx/Exx).
SYMBOL
PARAMETER
24 MHZ
VARIABLE CLOCK
UNIT
MIN.
MAX.
MIN.
MAX.
External program memory
tLHLL
ALE pulse duration
43
2 tCK40
ns
tAVLL
address set-up time to ALE
17
tCK25
ns
tLLAX
address hold time after ALE
17
tCK25
ns
tLLIV
time from ALE to valid instruction input
102
4 tCK65
ns
tLLPL
time from ALE to control pulse PSEN
17
tCK25
ns
tPLPH
control pulse duration PSEN
80
3 tCK45
ns
tPLIV
time from PSEN to valid instruction input
65
3 tCK60
ns
tPXIX
input instruction hold time after PSEN
0
0
ns
tPXIZ
input instruction oat delay after PSEN
17
tCK25
ns
tAVIV
address to valid instruction input
128
5 tCK80
ns
tPLAZ
address oat time to PSEN
10
10
ns
External data memory
tLHLL
ALE pulse duration
43
2 tCK40
ns
tAVLL
address set-up time to ALE
17
tCK25
ns
tLLAX
address hold time after ALE
17
tCK25
ns
tRLRH
RD pulse duration
150
6 tCK100
ns
tWLWH
WR pulse duration
150
6 tCK100
ns
tRLDV
RD to valid data input
118
5 tCK90
ns
tRHDX
data hold time after RD
0
0
ns
tRHDZ
data oat delay after RD
55
2 tCK28
ns
tLLDZ
time from ALE to valid data input
183
8 tCK150
ns
tAVDV
address to valid data input
210
9 tCK165
ns
tLLWL
time from ALE to RD or WR
75
175
3 tCK50
3 tCK+50
ns
tAVWL
time from address to RD or WR
92
4 tCK75
ns
tWHLH
time from RD or WR HIGH to ALE HIGH
17
67
tCK25
tCK+ 25
ns
tQVWX
data valid to WR transition
12
tCK30
ns
tQVWH
data set-up time before WR
162
7 tCK130
ns
tWHQX
data hold time after WR
17
tCK25
ns
tRLAZ
address oat delay after RD
0
0ns
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