AT73C237 Atmel, AT73C237 Datasheet - Page 2

• 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

2. Block Diagram
2
AT73C237
Figure 2-1.
AT73C237 Functional Block Diagram
VDD1 (13)
TWCK (11)
TWD (12)
VDD2 (9)
VDD3 (3)
VDD4 (7)
XRESIN (1)
XRESO (4)
GNDD (6)
LDO
Level Shifters
2.70V Supply Monitor
Bandgap Reference
Main Bandgap
1.80V/70mA
1.80V/70mA
2.75V/70mA
1.80V/2mA
Low Power
Reference
LDO3
HVBG
LDO2
LDO4
LPBG
LDO1
State Machine
TWI Interface
and Digital
RCOSC
TRIM
POR
GNDA (15)
VZAP (8)
VBG (16)
VO1 (14)
VO2 (10)
VO3 (2)
VO4 (5)
6362A–PMAAC–01-Jul-08