AT83C26-ALRUL Atmel, AT83C26-ALRUL Datasheet - Page 6

• Manufacturer Part Number: AT83C26-ALRUL
• Description: IC SMART CARD READER 1/PM 48VQFP
• Manufacturer: Atmel

Specifications of AT83C26-ALRUL

• Controller Type: Smart Card Reader Interface
• Interface: 2-Wire
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 65mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• For Use With: AT89STK-09 - EVAL BOARD FOR AT83C26
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6
Table 1. Ports Description (Continued)
Pin number
VQFP48 or
QFN48
AT83C26
38
39
40
41
42
43
44
45
46
47
48
Pad Name
CVSSB
LIB
CVCCB
CVCCB
RESET
CPRES2
CVCCINB
CVCC2
CRST2
CCLK2
CIO2
Note:
Pad Internal
Power Supply
VCC
VCC
CVCC2
CVCC2
CVCC2
The ESD limit is 4kV for smart card pins and 2kV for others.
Pad Type
open drain
pull up
pull up
PWR
PWR
PWR
PWR
PWR
GND
I/O
I/O
O
O
I
Description
DC/DCB input.
This pin must be directly connected to the VSS of power supply.
DC/DCB input.
LIB must be tied to VCC pin through an external coil (typically 10µH) and
provides the current for the charge pump of the DC/DCB converter.
It may be directly connected to VCC if the step-up converter is not used
(see STEPREGB bit in DCDCB register and see minimum VCC values in
Table 53.for class A and Table 54. for class B)
DC/DCB output.
The two CVCCB pins are connected together near the package. CVCCB
pin is only used for DC/DCB voltage measurements.The reason of two
CVCCB pins is to reduce noise.
DC/DCB output.
Micro controller interface function: reset signal.
•
•
•
Card presence for SC2 interface.
An internal pull to VCC can be activated in the pad if necessary using
PULLUP2 bit in SC2_CFG1 register (activated by default).
This pin must be connected to CVCCB pins next to the package.
VCC pin for SC2 interface.
CRST pin for SC2 interface.
CCLK pin for SC2 interface.
CIO pin for SC2 interface.
power on reset
A low level on this pin keeps the AT83C26 under reset even if
applied on power-on. It also resets the AT83C26 if applied when the
AT83C26 is running.
Asserting RESET
7511D–SCR–02/07