| IC number | Manufacturer | Documentation |
|---|---|---|
| BT458 | Brooktree (now Conexant) | Not available |
| IC number | Package | CBM part number | CBM part description |
|---|---|---|---|
| BT458LPJ | 84-pin PLCC | 390860-01 | BT458LPJ110 RAMDAC (PLCC PKG) |
| Device | Position | Package |
|---|---|---|
| A2410 | U911 | PLCC |
| Pin | Type | Name | Signal name |
|---|---|---|---|
| A2410 | |||
| 1 | Input | P0A | S1(0) |
| 2..6 | Input | OL1E..OL1A | GND, S4(9)..S1(9) |
| 7..11 | Input | OL0E..OL0A | GND, S4(8)..S1(8) |
| 12..19 | I/O | D[0]..D[7] | DATA(0)..DATA(7) |
| 20 | Input | CE* | BTCE* |
| 21..22 | Power | GND | GND |
| 23 | Power | VAA | VAA |
| 24..25 | Input | C0..C1 | ADDR(0)..ADDR(1) |
| 26 | Input | R/W | ADDR(2) |
| 27 | Power | VAA | VAA |
| 28 | Output | IOR | R |
| 29 | Output | IOG | G |
| 30 | Output | IOB | B |
| 31 | Analog | FSAJUST | GND via R911 |
| 32 | Analog | COMP | VAA via C911 |
| 33 | Power | VREF | Connected to VREF of BT438 |
| 34 | Power | GND | GND |
| 35 | Power | VAA | VAA |
| 36 | Power | GND | GND |
| 37 | Power | VAA | VAA |
| 38..42 | Input | P7E..P7A | GND, S4(7)..S1(7) |
| 43..47 | Input | P6E..P6A | GND, S4(6)..S1(6) |
| 48..52 | Input | P5E..P5A | GND, S4(5)..S1(5) |
| 53..57 | Input | P4E..P4A | GND, S4(4)..S1(4) |
| 58 | Input | SYNC* | Connected to pin 8 of U114 |
| 59 | Input | BLANK* | D_BLANK* |
| 60 | Input | LD* | Connected to LDA of BT438 via E923 |
| 61 | Input | CLOCK | Connected to CLK of BT438 |
| 62 | Input | CLOCK* | Connected to CLK* of BT438 |
| 63..64 | Power | VAA | VAA |
| 65 | Power | GND | GND |
| 66..70 | Input | P3E..P3A | GND, S4(3)..S1(3) |
| 71..75 | Input | P2E..P2A | GND, S4(2)..S1(2) |
| 76..80 | Input | P1E..P1A | GND, S4(1)..S1(1) |
| 81..84 | Input | P0E..P0B | GND, S4(0)..S2(1) |
Copyright © 2003-2004 Ronald van Dijk - All rights reserved
Last update: 4 January 2004