TDA8004AT Datasheet, PDF (4/22 Pages) NXP Semiconductors – IC card interface

Philips Semiconductors
IC card interface
Product specification
TDA8004AT
BLOCK DIAGRAM
handbook, full pagewidth
VDD
100 nF
21
VDDP
100 nF
6
100 nF
S1
S2
7
5
SUPPLY
INTERNAL
REFERENCE
Vref
VOLTAGE SENSE
STEP-UP CONVERTER
INTERNAL OSCILLATOR
2.5 MHz
ALARM
EN1 CLKUP
23
OFF
20
RSTIN
19
CMDVCC
3
5V/3V
1
CLKDIV1
2
CLKDIV2
CLOCK
HORSEQ
CIRCUITRY
EN2
PVCC
VCC
GENERATOR
EN5
SEQUENCER
EN4
RST
BUFFER
CLOCK
BUFFER
CLK
XTAL1
XTAL2
24
25 ^OSCILLATOR
EN3
THERMAL
PROTECTION
27
AUX1UC
28
AUX2UC
TDA8004AT
I/O
TRANSCEIVER
I/O
TRANSCEIVER
26
I/OUC
22
18
GND
n.c.
I/O
TRANSCEIVER
All capacitors are mandatory.
2004 May 10
Fig.1 Block diagram.
4
4 PGND
8 VUP
100 nF
17 ^VCC
100 100
14 CGND ^{nF nF}
16
RST
15
CLK
10
PRES
9
PRES
13
AUX1
12
AUX2
11
I/O
FCE658