參數(shù)資料
型號： M38514E6-XXXSP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDIP42
封裝： 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù)： 23/91頁
文件大?。?/td> 1161K
代理商： M38514E6-XXXSP
Rev.1.01
Oct 15, 2003
page 3 of 89
3851 Group (Built-in 24 KB or more ROM)
I/O port P2
I/O port P3
I/O port P4
VCC, VSS
CNVSS
VREF
AVSS
RESET
XIN
XOUT
P00/SIN2
P01/SOUT2
P02/SCLK2
P03/SRDY2
P04–P07
P10–P17
Functions
Name
Pin
Apply voltage of 2.7 V – 5.5 V to Vcc, and 0 V to Vss.
This pin controls the operation mode of the chip.
Normally connected to VSS.
Reference voltage input pin for A-D converter.
Analog power source input pin for A-D converter.
Connect to Vss.
Reset input pin for active “L”.
Input and output pins for the clock generating circuit.
Connect a ceramic resonator or quartz-crystal oscillator between the XIN and XOUT pins to set
the oscillation frequency.
When an external clock is used, connect the clock source to the XIN pin and leave the XOUT
pin open.
8-bit CMOS I/O port.
I/O direction register allows each pin to be individually
programmed as either input or output.
CMOS compatible input level.
CMOS 3-state output structure.
P10 to P17 (8 bits) are enabled to output large current
for LED drive.
8-bit CMOS I/O port.
I/O direction register allows each pin to be individually
programmed as either input or output.
CMOS compatible input level.
P22 to P25 can be switched between CMOS compatible
input level or SMBUS input level in the I2C-BUS inter-
face function.
P20, P21, P24 to P27: CMOS3-state output structure.
P24, P25: N-channel open-drain structure in the I2C-
BUS interface function.
P22, P23: N-channel open-drain structure.
8-bit CMOS I/O port with the same function as port P0.
CMOS compatible input level.
CMOS 3-state output structure.
8-bit CMOS I/O port with the same function as port P0.
CMOS compatible input level.
CMOS 3-state output structure.
Power source
CNVSS input
Reference
voltage input
Analog power
source input
Table 1 Pin description
Function except a port function
Serial I/O2 function pin
Sub-clock generating circuit I/O
pins (connect a resonator)
Reset input
Clock input
Clock output
I/O port P0
I/O port P1
P20/XCOUT
P21/XCIN
P22/SDA1
P23/SCL1
P24/SDA2/RxD
P25/SCL2/TxD
P26/SCLK1
P27/CNTR0/
SRDY1
P30/AN0–
P34/AN4
P40/CNTR1
P41/INT0
P42/INT1
P43/INT2/SCMP2
P44/INT3/PWM
I2C-BUS interface function pins
I2C-BUS interface function pin/
Serial I/O1 function pins
Serial I/O1 function pin
Serial I/O1 function pin/Timer X
function pin
A-D converter input pin
Timer Y function pin
Interrupt input pins
Interrupt input pin
SCMP2 output pin
Interrupt input pin
PWM output pin
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M3852 BK001 制造商:Alpha Wire 功能描述:CBL 8COND 14AWG BLK 1000'
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M3852 BK005 制造商:Alpha Wire 功能描述:CBL 8COND 14AWG BLK 100'
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