MAX6960 MAXIM [Maxim Integrated Products], MAX6960 Datasheet - Page 5

• Manufacturer Part Number: MAX6960
• Description: 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers
• Manufacturer: MAXIM [Maxim Integrated Products]

2–5, 7–10 2–5, 7–10
1, 6, 11,
19, 20,
35, 36,
22, 28,
MQFP
23–27,
29–33,
12, 44
34, 38
21,
13
14
15
16
17
18
37
39
40
41
42
43
—
PIN
1, 6, 11,
19, 20,
35, 36,
22, 28,
23–27,
29–33,
12, 44
34, 38
TQFN
21,
13
14
15
16
17
18
37
39
40
41
42
43
EP
_______________________________________________________________________________________
ROW1–ROW8
COL1–COL16
ADDOUT
ADDCLK
RISET0
RISET1
ADDIN
NAME
DOUT
GND
OSC
CLK
DIN
RST
CS
V+
EP
8 x 8 Matrix Graphic LED Drivers
Ground
LE D C athod e D r i ver s. ROW 1 to RO W 8 outp uts si nk cur r ent fr om the d i sp l ay' s cathod e r ow s.
Multiplex Clock Input. Drive OSC with a 1MHz to 8.5MHz CMOS clock.
Chip-Select Input. Serial data is loaded into the shift register when CS is low. Data is
loaded into the data latch on CS's rising edge.
Serial-Data Input. Data from DIN loads into the internal shift register on CLK's rising edge.
Serial-Data Output. The output is tri-state.
Serial-Clock Input. On CLK's rising edge data shifts into the internal shift register.
Reset Input. Hold RST low until at least 50ms after all interconnected MAX6960s are
powered up.
LED Anode Drivers. COL1 to COL16 outputs source current into the display's anode
columns.
Positive Supply Voltage. Bypass V+ to GND with a single 47µF bulk capacitor per chip
plus a 0.1µF ceramic capacitor per V+.
Address-Data Output. Connect ADDOUT to ADDIN of the next MAX6960. Use ADDOUT of
the last MAX6960 as a plane change interrupt output.
Address-Data Input. For first MAX6960, connect ADDIN to V+. For other MAX6960s,
connect ADDIN to ADDOUT of the preceding MAX6960.
Address-Clock Input/Output. Connect ADDCLK of all MAX6960 drivers together, ensuring
that only one MAX6960's ADDIN input is connected to V+.
Digit 0 Current Setting. Connect RISET0 to GND to program all of digit 0's segment
currents to 40mA. Leave RISET0 open circuit to program all of digit 0's segment currents
to 20mA. Connect RISET0 to GND through a fixed or variable resistor to adjust all of digit
0's segment currents between 20mA and 40mA.
Digit 1 Current Setting. Connect RISET1 to GND to program all of digit 1's segment
currents to 40mA. Leave RISET1 open circuit to program all of digit 1's segment currents
to 20mA. Connect RISET1 to GND through a fixed or variable resistor to adjust all of digit
1's segment currents between 20mA and 40mA.
Exposed Pad on Package Underside. Connect to GND.
4-Wire Serially Interfaced
FUNCTION
Pin Description
5