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參數(shù)資料
| 型號(hào)： | W78C31B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT Microcontroller(8位的微控制器) |
| 中文描述： | 8-BIT, 40 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 233K |
| 代理商： | W78C31B |
W78C31B
Publication Release Date: October 1997
- 7 -
Revision A3
DC Characteristics, continued
PARAMETER
SYMBOL
TEST CONDITIONS
SPECIFICATION
MIN.
TYP.
-
-
0
-
UNIT
MAX.
0.8
0.8
Input Low Voltage P1, P3
Input Low Voltage
XTAL1, RST
(*3)
Input High Voltage P1, P3
Input High Voltage
XTAL1, RST
(*3)
V
IL1
V
IL2
V
DD
= 4.5V
V
DD
= 4.5V
V
V
V
IH1
V
IH2
V
DD
= 5.5V
V
DD
= 5.5V
2.4
3.5
-
-
V
DD
+0.2
V
DD
+0.2
V
V
Notes:
*1. P0 and P2 are in external access mode.
*2. RST pin has an internal pull-down resistor of about 30 K
.
*3. XTAL1 is a CMOS input and RST is a Schmitt trigger input.
AC CHARACTERISTICS
The AC specifications are a function of the particular process used to manufacture the part, the
ratings of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the
specifications can be expressed in terms of multiple input clock periods (T
CP
), and actual parts will
usually experience less than a
ó
20 nS variation. The numbers below represent the performance
expected from a 1.2 micron CMOS process when using 2 and 4 mA output buffers.
Clock Input Waveform
T
T
XTAL1
F
CH
CL
OP,
T
CP
PARAMETER
Operating Speed
Clock Period
Clock High
Clock Low
SYMBOL
F
OP
T
CP
T
CH
T
CL
MIN.
0
25
10
10
TYP.
-
-
-
-
MAX.
40
-
-
-
UNIT
MHz
nS
nS
nS
NOTES
1
2
3
3
Notes:
1. The clock may be stopped indefinitely in either state.
2. The T
CP
specification is used as a reference in other specifications.
3. There are no duty cycle requirements on the XTAL1 input.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78C32B | 8-BIT Microcontroller(8位的微控制器) |
| W78C32CP-24 | 8-BIT MICROCONTROLLER |
| W78C32C | 8-BIT MICROCONTROLLER |
| W78C32C-24 | 8-BIT MICROCONTROLLER |
| W78C32C-40 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78C31B-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31B-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31B-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31B-40 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31BF-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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