TMC2193
PRODUCT SPECIFICATION
Pin Definitions
(continued)
Pin Name
C
BYP1
C
BYP2
C
BYP3
C
BYP4
R
REF1
Pin Number
16
11
6
3
18
Value
0.1
µF
0.1
µF
0.1
µF
0.1
µF
1210 Ohm
Description
Reference Bypass Capacitor for DAC1 and Reference DAC.
Connection point for 0.1
µF
Capacitor.
Reference Bypass Capacitor for DAC2.
Connection point for
0.1
µF
Capacitor.
Reference Bypass Capacitor for DAC3.
Connection point for
0.1
µF
Capacitor.
Reference Bypass Capacitor for DAC4.
Connection point for
0.1
µF
Capacitor.
Current Setting Resistor.
Connection point for external current
setting resistor for DAC1. The resistor is connected between
R
REF1
and GND. Output video levels are inversely proportional
to the value of R
REF1
.
Current Setting Resistor.
Connection point for external current
setting resistor for DAC2. The resistor is connected between
R
REF2
and GND. Output video levels are inversely proportional
to the value of R
REF2
.
Current Setting Resistor.
Connection point for external current
setting resistor for DAC3. The resistor is connected between
R
REF3
and GND. Output video levels are inversely proportional
to the value of R
REF3
.
Current Setting Resistor.
Connection point for external current
setting resistor for DAC4. The resistor is connected between
R
REF4
and GND. Output video levels are inversely proportional
to the value of R
REF4
.
Voltage Reference Input.
External voltage reference input,
internal voltage reference output, nominally 1.235V.
When SER (HIGH), OLUT/control/pointer address.
When SER (LOW), SA[1:0] of serial chip address SA[6:0].
ANALOG INTERFACE – Support (9 pins)
R
REF2
13
1210 Ohm
R
REF3
8
1210 Ohm
R
REF4
99
1210 Ohm
V
REF
98
1.235 V
MPU INTERFACE (13 pins)
A[1:0]/S
A
[1:0]
CS/SCL
D[7:0]
RW/SDA
SER
61, 62
59
63–70
60
58
TTL
TTL/R-BUS When SER (HIGH), microprocessor port clock.
When SER (LOW), serial bus clock.
TTL
Bi-directional Data Bus.
TTL/R-BUS When SER (HIGH), read/write control.
When SER (LOW), serial bus bi-directional data.
TTL
Microprocessor Select.
When LOW, the serial interface is
enabled. When HIGH, the parallel interface is enabled.
Analog ground
Digital ground
Digital positive power supply
Analog positive power supply
POWER & GROUND (17 pins)
A
GND
D
GND
V
DD
V
DDA
4, 9, 14, 100
26, 40, 53, 71, 97
39, 54, 72, 96
1, 7, 12, 17
0.0V
0.0V
+5.0V
+5.0V
6
REV. 1.0 3/26/03
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
