參數(shù)資料
型號: 935073600557
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MICROCONTROLLER, PQFP44
封裝: 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件頁數(shù): 55/80頁
文件大?。?/td> 446K
代理商: 935073600557
1997 Dec 15
59
Philips Semiconductors
Product specication
8-bit microcontrollers
P83C524; P80C528; P83C528
23 XTAL1 CHARACTERISTICS
Oscillator circuitry: crystal capacitors: C1 = C2 = 20 pF (see Fig.31).
Table 36 External clock drive XTAL
24 SERIAL PORT CHARACTERISTICS
See Table 37 and Fig.32.
Table 37 Serial Port Timing: Shift Register Mode
VDD =5 V ±10%; VSS =0 V; Tamb =0 °C to 70 °C; Load Capacitance = 80 pF
SYMBOL
PARAMETER
VARIABLE CLOCK
UNIT
MIN.
MAX.
fCLK
clock frequency
3.5
24
MHz
tCK
clock period
42
286
ns
tHIGH
HIGH time
17
tCK tLOW
ns
tLOW
LOW time
17
tCK tHIGH
ns
tr
RISE time
5ns
tf
FALL time
5ns
tCY
cycle time (tCY = 12 tCK)
0.5
3.43
s
SYMBOL
PARAMETER
24 MHZ OSCILLATOR
VARIABLE
OSCILLATOR
UNIT
MIN.
MAX.
MIN.
MAX.
tXLXL
Serial Port clock cycle time
0.5
12 tCK
s
tQVXH
output data setup to clock rising edge
283
10 tCK133
ns
tXHQX
output data hold after clock rising edge
23
2 tCK60
ns
tXHDX
input data hold after clock rising edge
0
0
ns
tXHDV
clock rising edge to input data valid
283
10 tCK133
ns
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