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): 53/67頁
文件大?。?/td> 400K
代理商: 935260531512
1998 Apr 07
57
Philips Semiconductors
Product specication
8-bit Flash microcontrollers
P89C738; P89C739
21.1
Serial Port characteristics
Table 36 Serial Port timing: Shift Register mode
VDD =5V ±10%; VSS =0V; Tamb = 0 to 70 °C; load capacitance = 80 pF.
SYMBOL
PARAMETER
12 MHz
OSCILLATOR
VARIABLE OSCILLATOR
UNIT
MIN.
MAX.
MIN.
MAX.
tXLXL
Serial Port clock cycle time
1
12tclk
s
tQVXH
output data set-up to clock rising edge
700
10tclk 133
ns
tXHQX
output data hold after clock rising edge 50
2tclk 117
ns
tXHDX
input data hold after clock rising edge
0
0
ns
tXHDV
clock rising edge to input data valid
700
10tclk 133
ns
Fig.32 Shift register mode timing.
handbook, full pagewidth
VALID
INSTRUCTION
ALE
8
7
6
5
4
3
2
1
0
CLOCK
WRITE TO SBUF
OUTPUT DATA
CLEAR RI
INPUT DATA
t XLXL
t XHQX
t QVXH
tXHDV
tXHDX
SET RI
SET TI
MGA179
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