參數(shù)資料
型號: 935260531512
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 48/67頁
文件大?。?/td> 400K
代理商: 935260531512
1998 Apr 07
52
Philips Semiconductors
Product specication
8-bit Flash microcontrollers
P89C738; P89C739
21 AC CHARACTERISTICS
VDD =5V ±10%; VSS =0V; Tamb = 0 to +70 °C; tclk(min) = 63 ns; Cl = 100 pF for Port 0, ALE and PSEN; Cl = 80 pF for
all other outputs unless otherwise specied; tclk(min) = 1/fclk(max);fclk = clock frequency; tclk = clock period.
SYMBOL
PARAMETER
12 MHz
16 MHz
24 MHz
40 MHz
VARIABLE CLOCK(1)
UNIT
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.
MIN.
MAX.
External program memory
tLHLL
ALE pulse
duration
127
85
43
35
2tclk 40
ns
tAVLL
address set-up
time to ALE
28
8
23
10
tclk 55
ns
tLLAX
address hold
time after ALE
48
28
21
10
tclk 35
ns
tLLIV
time from ALE to
valid instruction
input
233
150
95
55
4tclk 100 ns
tLLPL
time from ALE to
control pulse
PSEN
43
23
28
10
tclk 40
ns
tPLPH
control pulse
duration PSEN
205
143
90
60
3tclk 45
ns
tPLIV
time from PSEN
to valid
instruction input
145
83
55
25
3tclk 105 ns
Fig.28 IDD as function of frequency; valid only within frequency specifications of the device under test.
handbook, halfpage
0
30
20
10
0
420
812
16
MGK205
frequency (MHz)
IDD
(mA)
maximum active mode
typical active mode
maximum Idle mode
typical Idle mode
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