IC891
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| 8 | VCC |
CS | 1 |
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| 7 | HOLD |
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| STATUS |
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| VREF | VPP | REGISTER |
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| GENERATOR |
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SO | 2 | INSTRUCTION |
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| VPP |
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DECODE |
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| CONTROL |
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| CLOCK |
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WP | 3 | GENERATION | ADD |
| DECODER |
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| BUFFERS |
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GND 4
EEPROM
64K bit
INSTRUCTIONR/W AMPS8192 ⋅ 8
REGISTER
&
AUTO ERASE
DATA
REGISTER
6 SCK
5 SI
IC901 SC901584EPR2
| REGI3 | REGO3 | REGC3 | MUTEON | DW 2B | DW 2T | VC2 | ||
| 48 | 47 | 46 | 45 | 44 43 | 42 | |||
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| VC2 | |
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| PASS |
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| REGULATOR 3 |
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REGC2 | 49 |
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| RST2 | |
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REG2G | 50 | SERIAL |
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| MUTING |
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| BUFFER |
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REGO2 | 51 | PASS |
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REGI2 | REGULATOR 2 |
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52 |
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REGC1 | 53 |
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| SERIAL |
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| RST1 |
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REGO1 | 54 |
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PASS |
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| REGULATOR 1 |
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| MUTE ON | |||
REGI1 | 55 |
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| SEQSEL | RST2 | |
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| VG SELECT, VG DUTY |
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GND | 56 |
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| VREF0 |
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VREF | 57 |
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| BANDGAP |
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| REFERENCE | ||||
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| CLK |
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| REF1 | REF2 REF3 REF4 | REF5 |
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| REF DAC |
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DATA | 58 |
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| LVB |
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| DRIVER |
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STRB | 59 |
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CLK | 60 |
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WDT | 61 | CONTROL |
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SEQSEL | 62 |
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CLK | 63 |
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SLEEP | 64 |
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| FFCLR |
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| FFCLR | XWK4 | XWK3 | XWK2 | XWK1 | VRMC | LVB | HVB | VTSB |
VCIN | VCO2 | VO2 | L2 L2 | PGND2 PGND2 | XRST2 | CRST2 |
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41 | 40 | 39 | 38 37 36 35 | 34 | 33 |
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| RESET 2 |
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| RST2 |
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POWER | STEP |
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SWITCH 2 | VC2 |
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| DRIVER |
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| VREF |
| REF2 |
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| PWM |
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| 32 | DTC2 |
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| VREF |
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| REF2 |
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| 31 | RF2 |
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| 30 | INM2 |
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| 29 | VGSEL1 |
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| 28 | VGSEL2 |
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| VB |
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| 27 | VB |
VC |
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| 26 | PGND3 | |
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| STEP UP | 25 | LG | |
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| START UP | 24 | VG | |||
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| DC/DC CONVERTER | |||||
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| 23 | C1L |
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| REF1 |
| 22 | INM1 | |
VREF0 |
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| VREF |
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| 21 | RF1 |
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RST1 |
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| 20 | DTC1 | |
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| RST1 |
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| PWM | REF1 |
| 19 | XRST1ADJ | |
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| 18 | CRST1 | |||
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| VC |
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VC |
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| STEP |
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| RESET 1 | 17 | XRST1 | ||
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| VREF | |||||
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| RST2 | DRIVER |
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| POWER |
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VC |
| SWITCH 1 |
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10 |
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VC1 |
| VCO1 | VO1 | L1 L1 PGND1 | PGND1 |
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40