DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
7
SMART
CARD
ISO
INTERFACE
SCLK
SIO
EXTERNAL
SMART
CARD
INTERFACE
VCC
CONTROL
LOGIC
LED
DRIVERS
GND
TBUS1
TBUS
2
TBUS
3
TBU
S
0
RXT
X
ERST
ISBR
TCLK
TXD
RX
D
LE
D
1
LED
0
ICE INTERFACE
SEC
SMAR
T CA
RD
LO
GI
C
ISO
UA
RT and
CLOCK
G
ENERA
TOR
FLASH/ROM
PROGRAM
MEMORY
32KB
DATA
XRAM
2KB
CORE
SERIAL
VDD
INT2
INT3
GN
D
GN
D
PERIPHERAL
INTERFACE
and SFR LOGIC
FLASH
INTERFACE
T
EST
OCDSI
ISR
WATCH-
DOG
TIMER
PMU
PORTS
TIMER_0_
1
MEMORY_
CONTROL
CONTROL
UNIT
RAM_
SFR_
CONTROL
ALU
RE
S
E
T
VOLTAGE REFERENCE
AND FUSE TRIM
CIRCUITRY
VPD REGULATOR
AN
A_IN
PLL
and
TIMEBASES
VDD
SCRATCH
IRAM
256B
12MHz
OSCILLATOR
X12OUT
X12IN
COL4
COL3
COL2
COL1
COL0
ROW5
ROW4
ROW3
ROW2
ROW1
ROW0
KEYPAD
INTERFACE
I
2
C
MASTER
INT.
SDA
SCL
USR(
8:0
)
DR
IVE
R
S
USR7
USR6
USR5
USR4
USR3
USR1
USR2
USR0
USR8
VCC
RST
CLK
I/O
AUX2
AUX1
PRES
PRESB
VP
C
Pins avaiable on both 68 and 44 pin packages.
Pins only avaiable on 68 pin package.
GND
VDD
Figure 1: IC Functional Block Diagram