參數資料
型號: MB89951PFM
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64
封裝: 0.65 MM PITCH, QFP-64
文件頁數: 17/110頁
文件大?。?/td> 619K
代理商: MB89951PFM
GENERAL
1– 10
65
N.C.
For internal connection
Keep open.
76
81
90
Fig. 1.4 I/O Circuits
Classification
Circuit
Remarks
A
Crystal oscillator
Feedback resistor: About 1 M
/
5 V (1 to 5 MHz)
B
CMOS input
Pull down resistor (N-ch)
C
Output pull-up resistor (P-ch):
About 50 M
(5 V)
Hysteresis input
D
N-ch open-drain output
CMOS input
The segment output is optional.
Table 1–3 Pin Description for External ROM
(Continued)
External EPROM pins (for MB89PV950)
Pins No.
Pin Name
I/O
Function
X1
X0
Standby control signal
R
P-ch
N-ch
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