HT1621 Datasheet, PDF (4/20 Pages) Holtek Semiconductor Inc – RAM Mapping 32x4 LCD Controller for I/O C

Pad Assignment
HT1621
1 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
RD 2
WR 3
D ATA 4
(0 ,0 )
VSS 5
O SCO 6
O SCI 7
V LC D 8
VDD 9
10
11
12
13 14 15 16 17 18 19
32 S E G 16
31 S E G 17
30 S E G 18
29 S E G 19
28 S E G 20
27 S E G 21
26 S E G 22
25 S E G 23
24 S E G 24
23 S E G 25
22 S E G 26
21 S E G 27
20 S E G 28
Chip size: 127 ´ 129 (mil)²
* The IC substrate should be connected to VDD in the PCB layout artwork.
4
April 21, 2000