AT73C237 Atmel, AT73C237 Datasheet - Page 4

• Manufacturer Part Number: AT73C237
• Description: IC POWER MANAGEMENT UNIT 16QFN
• Manufacturer: Atmel

Specifications of AT73C237

• Applications: Wireless
• Current - Supply: 250µA
• Voltage - Supply: 2.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4. Application Block Diagram
4
AT73C237
Figure 4-1.
Typical Application Components Design
Schematic Reference
C1
C2
C3
C4
C5
C6
C7
C8
C9
D1, D2
AT73C237 Application Block Diagram With GPS Module
TWI
Core and IOs
C
7
C
3
Pin
VO1
VO2
VO3
VO4
VDD1
VDD2
VDD3
VDD4
VBG
C
Coin-Cell
4
Back up
C
9
XRESIN (1)
VO3 (2)
VDD3 (3)
XRESO (4)
VBG (16)
VO4 (5)
3V
GNDA (15)
GNDD (6)
AT73C237
Eg: Panasonic
CR1025
D
Description
2.2 µF ± 15% Ceramic Capacitor, X5R, 0402, 6.3V
MURATA
TDK: C1005X5R0J225MT
1 µF ± 15% Ceramic Capacitor, X5R, 0402, 6.3V
MURATA: GRM155R60J105KE19
TDK: C1005X5R0J105KT
100 nF ± 15% Ceramic Capacitor, X5R, 0402, 10V
MURATA: GRM155R61A104KA01
TDK: C1005X5R1C104KT
ON-Semiconductor
1
J
for 237
VDD4 (7)
1
VO1 (14)
: "ON"
C
8
D
C
®
2
VDD1 (13)
TWCK (11)
VZAP (8)
: GRM155R60J225ME15
5
TWD (12)
VDD2 (9)
VO2 (10)
J
for 237
2
Li-Ion Battery
3.0V to 4.2V
: "OFF"
®
: BAS70-04LT1
C
6
C
C
6362A–PMAAC–01-Jul-08
1
2
TX
RX