FMS7401LEN Fairchild Semiconductor, FMS7401LEN Datasheet - Page 17

• Manufacturer Part Number: FMS7401LEN
• Description: IC CTRLR POWER DGTL EEPROM 8DIP
• Manufacturer: Fairchild Semiconductor

Specifications of FMS7401LEN

• Applications: Digital Power Controller
• Core Processor: 8-Bit
• Program Memory Type: EEPROM (1 kB)
• Ram Size: 64 x 8
• Number Of I /o: 6
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Controller Series: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: FMS7401LEN_NL; FMS7401LEN_NL

4.1.1 ADCNTRL1 Register
The ADCNTRL1 is an 8-bit memory map register used to configure and control the ADC circuits. Software has both read and write
access to all bits of the register.
Bit 7 of the ADCNTRL1 register is the ADC pending (APND) flag and is triggered after the 8-bit converted digital value is latched to
the ADATA register towards the end of the ADC conversion cycle. The APND bit may be used by software to monitor when to access
ADATA or to issue microcontroller hardware interrupts (if enabled). In order for software to monitor APND, it must be cleared before
the next converted value is latched in ADATA where the APND flag is set to 1.
REV. 1.0.3 1/24/05
PRODUCT SPECIFICATION
SR_GND
G3/AIN1
G2/AIN2
G1/AIN3
G4/AIN0
G7/AIN4/A
GND
G6/-A
IN
OUT
+V
REF
COMPSEL
Autozero
Amplifier
_
+
Vcc
ACH5
x16
GAIN
_
+
ENIS
+V
R
REF
R
ACHSEL[3:0]
+V
AGND
Vcc/3
ACH2
ACH3
ACH4
ACH1
ACH5
VLOOP
Sel
Figure 6. ADC Block Diagram
2R
0.23R
REF
R
Y
Vcc
R
+
-
S/H
ADSTROBE
ENAMP
B
A
Analog Voltage
COMPLEV
Voltage Level
Sel
Generator
Generator
6
Y
+V
AREF
4
ACH5
F
RCLK2
+V
8
REF
Programmable
DELTIME
4
LOGIC
+V
Delay
Vcc
SAR
REF
REFSEL
A
B
Sel
Y
PWMOFF
+V
8
AREF
FMS7401L
17