TMC423 Data Sheet – (V1.13 / June 20
th
, 2007)
7/22
SW_ROW_PIN4
SW_ROW_PIN5
LED_ROW_PIN0
LED_ROW_PIN1
LED_ROW_PIN2
LED_ROW_PIN3
LED_ROW_PIN4
LED_ROW_PIN5
SDO
SDI
SCK
NSCS
SDO428
NSCS428
NINT
61
60
59
56
55
54
53
52
99
98
97
96
95
94
93
In
In
Out
Out
Out
Out
Out
Out
Out
In
In
In
In
In
Out
Switch Matrix Pin 4
Switch Matrix Pin 5
LED Matrix Drive Pin 0
LED Matrix Drive Pin 1
LED Matrix Drive Pin 2
LED Matrix Drive Pin 3
LED Matrix Drive Pin 4
LED Matrix Drive Pin 5
SPI MISO
SPI MOSI
SPI SCK
SPI NSCS
SPI MISO Pin of TMC428
SPI NSCS Pin of TMC428
Interrupt Output (low active)
Table 1: TMC423 Pinout
Note: Pins which are not marked in Figure 1: Pinout TMC423 on page 5 must be left open.
1.2
Recommended Operating Conditions
Parameter
Clock Frequency
(1)
Temperature
2.5 V Power Supply
5.0 V Power Supply
Value
16
0 … + 70
2.25 … 2.75
4.50 … 5.50
Unit
MHz
°C
V
CCA
V
CCI
Table 2: Operating Conditions
1 – slower frequencies are also supported. Please take care about the timing information in this datasheet, since they are
based on 16MHz Clock Frequency.
1.3
Electrical Characteristics
Parameter
Supply Current 2.5V
Supply Current 5.0V
(Output current = 0)
LED driver current per pin
Input voltage level Low
Input voltage level High
Encoder input pulse length
Encoder count rate
Min
Max
100
10
20
0.8
2.4
2 t
CLK
f
CLK
Unit
mA
mA
mA
V
V
Table 3: Operating Conditions
Copyright © 2004 TRINAMIC Motion Control GmbH & Co. KG
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
