73S1210F-68IM/F Maxim Integrated Products, 73S1210F-68IM/F Datasheet - Page 25

• Manufacturer Part Number: 73S1210F-68IM/F
• Description: IC SMART CARD READER 68-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73S1210F-68IM/F

• Core Processor: 80515
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: I²C, SmartCard, UART/USART
• Peripherals: LED, POR, WDT
• Number Of I /o: 8
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS_1210F_001
1.7.2
The detailed power supply management logic block diagram is shown in Figure 5.
The 73S1210F contains a power supply and converter circuit that takes power from any one of three
sources; V
V
voltage range of 2.7 to approximately 3.1 volts or by a standard supply of 3.3 or 5 volts.
V
Rev. 1.4
PC
BUS
is specified to range from 2.7 to 6.5 volts. It can typically be supplied by a single cell battery with a
ON_OFF
is typically supplied by an external power supply and ranges in value from 4.4 to 5.5 volts (6.5V maximum).
V
V
BUS
Power Supply Management
BAT
PC
, V
BUS
, or V
Figure 5: Detailed Power Management Logic Block Diagram
Debounce
Circuit
MPU
BAT
PWRDN*
V
.
BUSTH
INT
*PWRDN bit in MISCtl0
Control
Power
VCC Enable
+
-
D
SET
CLR
Q
Q
Pass Through
Mode Enable
VCC Voltage
NO
NC
Circuit
(POR)
Delay
Select
VDD to
Internal
Circuits
S
R
SET
CLR
Q
Q
Regulator
Regulator
VCC
VDD
EN
Converter
Through*
DC-DC
VP
/ Pass
*Pass Through -> VP = VPC
VDD
VPC
VCC
OFF_REQ
INT3
LIN
73S1210F Data Sheet
VP
To optional
external
circuits
20mA max.
Smart
Card
Power
25