參數(shù)資料
型號(hào)： MSM63238-XXXTS-K
廠商： OKI ELECTRIC INDUSTRY CO LTD
元件分類(lèi)： 微控制器/微處理器
英文描述： 4-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, TQFP-100
文件頁(yè)數(shù)： 32/32頁(yè)
文件大小： 258K
代理商： MSM63238-XXXTS-K
Semiconductor
MSM63238
9/32
PIN DESCRIPTIONS
The basic functions of each pin of the MSM63238 are described in Table 1.
A symbol with a slash (/) denotes a pin that has a secondary function.
Refer to Table 2 for secondary functions.
For type, "—" denotes a power supply pin, "I" an input pin, "O" an output pin, and "I/O" an input-
output pin.
For pin, "GS-BK" denotes an 80-pin flat package (80QFP) and "TS-K" a 100-pin flat package
(100TQFP).
Table 1 Pin Descriptions (Basic Functions)
Function
Symbol
Type
Description
VDD
Positive power supply
VSS
Negative power supply
VDDR
Interface power supply for SIGIN, BS1, BS2
VDDI
Positive power supply pin for external interface
(power supply for input, output, and I/O ports)
VDDL
Positive power supply pin for internal logic (internally generated).
A capacitor (0.1 mF) should be connected between this pin and VSS.
VDDH
Voltage multiplier pin for power supply backup
(internally generated).
A capacitor (1.0 mF) should be connected between this pin
and VSS.
CB1
Pins to connect a capacitor for voltage multiplier.
A capacitor (1.0 mF) should be connected between CB1 and CB2.
CB2
XT0
I
Clock oscillation pins for POCSAG decoder.
A 32.768 kHz, 38.4 kHz, or 76.8 kHz crystal and capacitor (CG)
should be connected to these pins.
XT1
O
XTM0
I
XTM1
O
OSC0
I
High-speed clock oscillation pins.
A ceramic resonator and capacitors (CL0, CL1) or external
oscillation resistor (ROS) should be connected to these pins.
OSC1
O
XTSEL0
I
Low-speed CPU clock select pins.
These pins are used to select a low-speed CPU clock.
Because these are high impedance inputs, be sure to tie these
pins to VDD or VSS.
XTSEL1
TST1
Input pins for testing.
Pull-down resistors are internally connected to these pins.
The user cannot use these pins.
TST2
I
TST3
Low-speed clock oscillation pins for CPU.
A 32.768 kHz crystal and capacitor (CGM) should be connected
to these pins.
Power
Supply
Oscillation
Test
VDD2
Positive power supply pin for low-speed clock (internally generated)
31
32
13
36
27
26
28
29
30
14
15
23
24
19
20
21
22
16
17
18
Pin
—
TS-K
GS-BK
36
37
14
42
32
31
33
34
35
15
16
27
28
21
22
23
24
18
19
20
相關(guān)PDF資料
PDF描述
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