TDA8000 Datasheet, PDF (19/24 Pages) NXP Semiconductors – Smart card interface

Philips Semiconductors
Smart card interface
Product specification
TDA8000; TDA8000T
handbook, full pagewidth
100 nF
12 V 25 V ⁽¹⁾
VDD RST
INT1
ALARM ALARM ^{VSUP CVNC VDD VH}
OFF
PRES
I²C
COM
12 V
10
µF
25 V
10
µF
GND
START
SDA
PORT
SCL
1
PORT
80C51
MICRO-
CONTROLLER
WRITE
RSTIN
I/O1(µC)
I/O2(µC)
PSEL1
PSEL2
CLKDIV
CVNC
XTAL1
XTAL2
CLKOUT
TDA8000
PRES
VCC
RST
CLK
VPP
I/O1
GND
I/O2
DELAY GND CLKIN XTAL
47 nF
7.16 MHz
(1) If pin V_H is not connected to 25 V, it should be connected to V_DD.
C1
C2
C3
C4
C5
C6
C7
C8
CARD
SOCKET
MGG826
Fig.15 Application in a remote card reader; the microcontroller is clocked and powered by the TDA8000 interface
is achieved via the I²C-bus.
1996 Dec 12
19