參數(shù)資料
型號(hào): P83C251TQ24
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁(yè)數(shù): 29/36頁(yè)
文件大小: 813K
代理商: P83C251TQ24
8xC251TB/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
29
6.5
External Clock Drive
Table 15. External Clock Drive
Symbol
Parameter
Min
Max
Units
1/TCLCL
Oscillator Frequency (FOSC)
24
MHz
TCHCX
High Time
20
ns
TCLCX
Low Time
20
ns
TCLCH
Rise Time
10
ns
TCHCL
Fall Time
10
ns
0.7 V
CC
A4119-01
0.45 V
V
CC – 0.5
0.2 V
CC – 0.1
TCHCL
TCLCX
TCLCL
TCLCH
TCHCX
Figure 16. External Clock Drive Waveforms
AC inputs during testing are driven at VCC – 0.5V for a logic 1
and 0.45 V for a logic 0. Timing measurements are made at
0.45 V
Inputs
Outputs
A4118-01
VIH MIN
VOL MAX
VCC – 0.5
0.2 VCC + 0.9
0.2 VCC – 0.1
a min of VIH for a logic 1 and VOL for a logic 0.
Figure 17. AC Testing Input, Output Waveforms
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