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参数资料
| 型号： | S83C196MD |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | EIAJ, SHRINK, QFP-80 |
| 文件页数： | 10/25页 |
| 文件大小： | 1306K |
| 代理商： | S83C196MD |
8XC196MD
EXTERNAL CLOCK DRIVE
Symbol
Parameter
Min
Max
Units
1TXLXL
Oscillator Frequency
8
160
MHz
TXLXL
Oscillator Period
625
125
ns
TXHXX
High Time
22
ns
TXLXX
Low Time
22
ns
TXLXH
Rise Time
10
ns
TXHXL
Fall Time
10
ns
EXTERNAL CRYSTAL CONNECTIONS
272323 – 8
NOTE
Keep oscillator components close to chip and use
short direct traces to XTAL1 XTAL2 and VSS When
using crystals C1 e 20 pF C2 e 20 pF When using
ceramic resonators consult manufacturer for recom-
mended circuitry
EXTERNAL CLOCK CONNECTIONS
272323 – 9
Required if TTL driver used
Not needed if CMOS driver is used
EXTERNAL CLOCK DRIVE WAVEFORMS
272323 – 10
An external oscillator may encounter as much as a 100 pF load at XTAL1 when it starts-up This is due to
interaction between the amplifier and its feedback capacitance Once the external signal meets the VIL and
VIH specifications the capacitance will not exceed 20 pF
AC TESTING INPUT OUTPUT WAVEFORMS
272323 – 11
AC Testing inputs are driven at 35V for a Logic ‘‘1’’ and 045V for
a Logic ‘‘0’’ Timing measurements are made at 20V for a Logic
‘‘1’’ and 08V for a Logic ‘‘0’’
FLOAT WAVEFORMS
272323 – 12
For Timing Purposes a Port Pin is no Longer Floating when a
100 mV change from Load Voltage Occurs and Begins to Float
when a 100 mV change from the Loaded VOH VOL Level occurs
IOL IOH e g15 mA
18
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