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Details, datasheet, quote on part number:UPD16312GB-3B4
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Datasheet text preview:
DATA SHEET
MOS INTEGRATED CIRCUIT
PD16312
1/4- to 1/11-DUTY FIPTM (VFD) CONTROLLER/DRIVER
The PD16312 is a FIP (fluorescent Indicator Panel, or Vacuum Fluorescent Display) controller/driver that is driven on a 1/4- to 1/11 duty factor. It consists of 11 segment output lines, 6 grid output lines, 5 segment/grid output drive lines, a display memory, a control circuit, and a key scan circuit. Serial data is input to the PD16312 through a three-line serial interface. This FIP controller/driver is ideal as a peripheral device for a single-chip microcomputer.
FEATURES
· Multiple display modes (11-segment & 11-digit to 16-segment & 4-digit) · Key scanning (6 4 matrix) · Dimming circuit (eight steps) · High-voltage output (VDD 35 V max). · LED ports (4 chs., 20 mA max). · General-purpose input port (4 bits) · No external resistors necessary for driver outputs (P-ch open-drain + pull-down resistor output) · Serial interface (CLK, STB, DIN, DOUT)
ORDERING INFORMATION
Part Number Package 44-pin plastic QFP ( 10)
PD16312GB-3B4
Document No. IC-3307 (1st edition) Date Published March 1997 P Printed in Japan
©
1993
PD16312
BLOCK DIAGRAM
Command decoder
Dimming circuit
DIN DOUT Serial I/F CLK STB VDD R OSC Timing generator key scan Data selector 5
Seg1 16-bit 16 output latch 5 11 Segment driver Seg11
Display memeory 16 bits × 11 words
Multip lexed diver
Seg12/Grid11
Seg16/Grid7
Key data memory (4 × 6) Key1 to Key4
11-bit shift register 11
5 Grid1 6 Grid driver Grid6
4
SW1 to SW4
4-bit latch 4 4-bit latch LED1 LED4 Key data memory (4 × 6) VDD (+5 V) VSS VEE (0 V) (-30 V)
2
PD16312
PIN CONFIGURATION (Top View)
LED1 LED2 LED3 LED4 Grid1 Grid2 Grid3 35 Grid4 34 33 32 31 30 29 28 27 26 25 24 23 OSC
44
43
42
41
40
39
38
VDD
V SS
37
SW1 SW2 SW3 SW4 DOUT DIN VSS CLK STB KEY1 KEY2
1 2 3 4 5 6 7 8 9
36
Grid5 Grid6 Seg16/Grid7 Seg15/Grid8 Seg14/Grid9 Seg13/Grid10 VEE Seg12/Grid11 Seg11 Seg10 Seg9
10 11
12
13
14
15
16
17
18
19
20
21 Seg7
Seg1/KS1
Seg2/KS2
Seg3/KS3
Seg4/KS4
Seg5/KS5
Seg6/KS6
KEY3
KEY4
Use all power pins.
Seg8
VDD
22
3
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