IC Notes
• 3301A microcode and 3601 ALU ROMS are pin-compatible with 74S387
74S387: TI Memory Databook 1st Ed., 1975, pg 182.
IC Type C uF R KOhm t uS t mS
U11-b4 74121 0.0002 4.42 0.613
U82-7 9601 0.1 24.8 816
U32-10 74123 330 18.2 1,746
U32-10 1.8 26.7 14
U32-11 74123 10 28.7 82
U32-11 1.8 22.1 11
U42-c2 74123 47 27 365
U42-c2 1 27 8
U42-c3 74123 0.01 30.1 86
U42-c3 123 graph 0.0002 27 2
U51-5 74121 6.8 22 104
U61-9 9601 15 18.7 93
U61-14 9601 6.8 47 104
U62-7 74121 0.0001 4.32 0.299
U62-6 74121 0.047 4.12 134
U62-13 74121 0.047 6 205
U63-8 74121 0.0001 6.8 0.471
Monostable Pulse Time Calculations
Divider U 19.6
Divider L 24.3
Divider L 16.8
Feedback R 1000
Series R 4.99
divider ratio 2.97
gain ratio 201.40
Gain 599
Output V (meas.) 1.5
Head V 0.0025
Tape Head Amp Calculations
HP 9830 Computer
Section: IC Types List, Calculations
Page: A2 Rendition: 2014 Dec 26
Type HP # V+5 GND Function Qty. Type HP # V+5 GND Function Qty.
7400 1820-0054 14 7 NAND 2-in / quad 28 74100 24 7 4-bit latch / dual 1
74H00 1820-0370 14 7 " 8 74H101 14 7 FF JK 1
74H01 1820-0605 14 7 NAND 2-in OC / quad 1 74106 5 13 FF JK / dual 1
7402 1820-0328 14 7 NOR 2-in / quad 6 74H106 5 13 " 2
7403 1820-0269 14 7 NAND 2-in OC / quad 8 74H108 14 7 FF JK /dual 4
7404 1820-0174 14 7 NOT / hex 18 74121 14 7 monostable 6
74H04 1820-0424 14 7 " 1 74123 16 8 monostable /dual 4
74L04 14 7 " 2 74145 16 8 decoder 1-of-10 OC 4
74S04 14 7 " 1 74150 24 12 multiplexer 16-in 1
7406 1820-0471 14 7 NOT OC hi-V / hex 7 74151 16 8 multiplexer 8-in 1
7407 14 7 buffer OC hi-V / hex 1 74154 1820-0495 24 12 decoder 1-of-16 3
7408 1820-0511 14 7 AND 2-in / quad 18 74155 16 8 decoder 1-of-4 / dual 3
74H08 14 7 " 2 74161 16 8
counter 4-bit binary synchronous
1820-0141 14 7 " 1 74193 1820-0233 16 8
counter 4-bit binary up/down
2
7410 1820-0068 14 7 NAND 3-in/ triple 7
74H10 1820-0371 14 7 " 2 93L14 1820-0701 16 8 latch 4-bit 1
74H11 14 7 AND 3-in/ triple 1 9322 1820-0616 16 8 multiplexer 2-in / quad 1
7413 1820-0537 14 7 NAND 4-in schmitt /dual 1 9328 1820-0741 16 8 SR 8-bit /dual 2
7416 1820-0577 14 7 NOT OC hi-V buffer / hex 7 9601 1820-0207 14 7 monostable 3
7417 1820-0618 14 7 buffer OC hi-V / hex 15
7420 14 7 NAND 4-in /dual 1 MC846 1820-0094 14 7 NAND 2-in DTL / quad 1
74H20 14 7 " 1 N8885A 1820-0923 14 7 NOR 2-in / quad 1
74H21 1820-0374 14 7 AND 4-in / dual 2
74H22 14 7 NAND 4-in OC /dual 1 1103 * RAM 1K*1 128
7432 1820-0661 14 7 OR 2-in / quad 2 3207 * drivers for 1103s / quad 3
7437 14 7 NAND 2-in buffer / quad 1 3208 * amps for 1103s / hex 3
74H40 1820-0376 14 7 NAND 4-in buffer / dual 1 3301A 16 8 ROM 256*4 4
74L42 1820-0777 16 8 decoder 1-of-10 6 3601 16 8 ROM 256*4 5
7451 14 7 AOI 2-2 / dual 3 (HP ROM) * ROM 512*8 30
74H51 1820-0378 14 7 " 3 TMS4100 * ROM char. gen. 1
74H52 14 7 AO 2-2-2-3-e 1
7453 14 7 AOI 2-2-2-2-e 1 (5*7 LED) 1990-0343 - 5*7 LED display / quad 8
74H53 1820-0380 14 7 AOI 2-2-2-3-e 1
74H54 14 7 AOI 2-2-2-2 1 723 1820-0196 * voltage regulator 4
74H62 1820-0385 14 7 AO expander 2-2-3-3 1 UA739 1826-0044 * linear amp / dual 1
7474 1820-0077 14 7 FF D / dual 12 741 1820-0203 * op amp 3
74H74 1820-0512 14 7 " 2 MC1437L 1826-0019 * op amp / dual 1
7475 1820-0301 5 12 latch 4-bit 2
7490 5 10 counter decade 1 (NPN) 1858-0014 - transistors NPN / quad 17
7491 1820-0364 5 10 SR 8-bit 1 (PNP) 1858-0027 - transistors PNP / quad 10
7493 5 10 counter 12 3
7495 1820-0367 14 7 SR 4-bit 10
5495 14 7 " 11
43 203 34 261
* See circuit schematic for power connections
* See circuit schematic for power connections
* See circuit schematic for power connections
* See circuit schematic for power connections
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