參數(shù)資料
型號(hào)： FMS7401
廠商： Fairchild Semiconductor Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Digital Power Controller
中文描述： 數(shù)字電源控制器
文件頁(yè)數(shù)： 3/80頁(yè)
文件大?。?/td> 1535K
代理商： FMS7401
PRODUCT SPECIFICATION
FMS7401/7401L
REV. 1.0.2 6/23/04
3
FMS7401/7401L Pin Definitions
Pin Number
Pin Name
Pin Function Description
8-Pin
14-Pin
PDIP
SOIC
TSSOP
PDIP
SOIC
TSSOP
1
3
1
G4/AIN0
General purpose I/O port (bit 4 of the I/O configuration registers).
AIN0 analog input of the ADC (autozero amplifier’s positive terminal).
Programmable Comparator non-inverting input, if COMPSEL=0.
2
4
3
GND
Digital ground pin.
3
5
6
G2/AIN2
General purpose I/O port (bit 2 of the I/O configuration registers).
AIN2 analog input of the ADC.
Programmable Comparator non-inverting input, if COMPSEL=1.
4
6
7
G1/AIN3/
ADSTROBE
General purpose I/O port (bit 1 of the I/O configuration registers).
AIN3 analog input of the ADC.
External digital clock input.
PWM Timer 1’s ADSTROBE output.
5
7
9
G3/AIN1
General purpose I/O port (bit 3 of the I/O configuration registers).
AIN1 analog input of the ADC.
Internal current source generator pin.
6
8
10
G0/
T1HS1
General purpose I/O port (bit 0 of the I/O configuration registers).
PWM Timer 1’s T1HS1 output.
7
1
12
G5/
T1HS2
General purpose I/O port (bit 5 of the I/O configuration registers).
PWM Timer 1’s T1HS2 output.
8
2
14
VCC
Supply voltage input for the FMS7401L. In the FMS7401, Vcc is the regulated output.
–
–
2
SR_GND
AIN0 analog input of the ADC (autozero amplifier’s negative terminal). SR_GND is
internally connected to GND in the 8-pin FMS7401L.
–
–
4
G6/-A
IN
General purpose I/O port (bit 6 of the I/O configuration registers).
Uncommitted amplifier negative analog input.
–
–
5
G7/AIN4/
A
OUT
General purpose I/O port (bit 7 of the I/O configuration registers).
AIN4 analog input of the ADC.
Uncommitted amplifier analog output.
–
–
8
AGND
Analog ground for the FMS7401. In the FMS7401L, AGND is internally connected to
GND. Externally, AGND should be left unconnected or connected to GND.
–
–
11
RESET
Active low external reset input.
–
–
13
VDD
High voltage supply input for the FMS7401. In the FMS7401L, VCC is internally
connected to VDD. Externally, VDD should either be left unconnected or connected to
VCC.
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