name:         PCF2100
function:     LCD DRIVER (40 SEGMENT)
package:      DIP,28
manufacturer: PHILIPS
added-by:     JASON GOHLKE
comment:      Data is loaded on High->Low CL transition.
comment:      When serial data bit 21 is HIGH, the A latches (BKPLN1) are loaded.
comment:      When bit 21 is LOW, B-latches (BKPLN2) are loaded.
comment:      Data bit 0 (first serial bit) must be zero.

       +--()--+
 -> CL | 1  28| DLEN <-
   VDD | 2  27| DATA <-
-> OSC | 3  26| BKPLN1 ->
   VSS | 4  25| BKPLN2 ->
<- S20 | 5  24| S1 ->
<- S19 | 6  23| S2 ->
<- S18 | 7  22| S3 ->
<- S17 | 8  21| S4 ->
<- S16 | 9  20| S5 ->
<- S15 |10  19| S6 ->
<- S14 |11  18| S7 ->
<- S13 |12  17| S8 ->
<- S12 |13  16| S9 ->
<- S11 |14  15| S10 ->
       +------+

This information was added by a third party and may be incorrect.

This pinout came from the Chipdir:
http://www.chipdir.org/