background image

8

9 IC278

10

ØnD0•Ø

12

IC233

11

13

5

IC233

2

3

IC234

8

10

9

4

IC234

12

11

13

5

4

2

3

8

10

9

11

12

13

IC244

N248

11

12

13

IC278

13

1

3

2 IC235

1 12

11 IC235

13

9

8 IC235

10

N222

2
3
4

12
11
10

IC243

4

n8

n4
n8

8

9

10

IC232

2

3

1

IC244

13

1

2
3
4

12
11
10

IC242

n1
n2

4

13

1

2
4
3

8
6

12
11
10

9

5

2

n2

1

n2

1

4
3
2

5
8

9

6

2

1

n8

n1

n1

n2

6

5

4

IC244

8

9 IC221

10

1

n1

2

n2

4

n4

n8

n1

n2

4

n8

n8

N264

2

3

1

IC276

N204

N212

N228

N216

nDP0

N210

N272

N206

N208

N214

nDP6

nDP5

IC243

IC242

IC241

IC241

IC241

IC231

IC231

n1

nDP2

nDP1

nDP4

nDP3

5

6 IC235

2

1

4

8

9 IC244

10

N270

OP

DP<8

DP>6

DPR8

DPR4

DPR2

DPR1

to Display Latch

2
3
4

0

6

N367

nDP0
nDP2
nDP3
nDP4
nDP6

2
3
4

0

6

N363

DP>2
DP>3
DP>4
DP>6

DP>4

DP>3

DP>2

DP>6

6

J

K

Q

nQ

nC

1

J

K

Q

nQ

6

J

K

Q

nQ

1

J

K

Q

nQ

N362

nDP2

nDP3

nDP4

nDP5

nDP6

nDP0

nDP1

to

Display

decimal 

points

N347

N105

N107

N109

N115

N113

N111

N103

DPNE 

 to Q Flag

DPGT 

 to Q Flag

to Q Flag

DPR

to X Register & Arithmetic 

nDP2

nDP3

nDP4

nDP5

nDP6

nDP0

nDP1

NK13

NK12

NK20

IC387

4

5

3

2

6

12

11 IC367

13

IC387

13

1

10

9

8

1

IC388

2
3

13

11

12

6

IC388

8
5
4

10

9

12 11

nØD15

X

CDDnØD15

CDX

CDY

CDS16

CDS10

CDD

Y

ASUM16

ASUM10

Facit  1123  Calculator

Section: Decimal Point Register & Q Flag

 Page: 9

Rendition: 2014 Mar 6

N104

12

1

OP

13

12
10
11

8

9

10

IC245

IC231

DP>6
DP<8

3

IC246

2

4
5

6

2

13 IC266

M5962

ØB1p

N255 N355

2

6

IC273

5
4
3

N261 N364

CQXYD

IC379

9

10

13

1

8

YP1

1

2

3 IC389

IC379

3

2

4

5

6

9

8
6
5

IC378

13

10
12
11

IC378

X

X

CQX

CQY

OP•ØD0•B4p

nOP•ØD14p

n(OP•ØD0•B2p)

1

2
3
4

IC380

13

11

12 IC389

10

8

9 IC389

4

6

5 IC389

CQXNZ

DPNE

CQDNE

DPGT

CQDGT

Q

nQ

9

5
6
8

IC380

ØB1

CQXB1

11

IC358

12

10

9

13

11

12 IC370

X

nOP•ØD14p

ØB8

CQXB1

Y4

Y8

nX1
nX2
nX4
nX8

OP

13

nX=0

Q Flag

Decimal Point Register

nC

nC

nC

NR12

NR13

NR20
NR21
NR28
NR22
NR23

NK21
NK27
NK22
NK23

NK24
NK11
NK25
NK26

NR24
NR11
NR25
NR26

Содержание 1123

Страница 1: ...Arithmetic 10 Display Latch Display 11 Power Supply 12 Timing Diagram 13 IC Pinouts Physical Layout 14 Connectors 15 Facit 1123 Calculator Facit 1123 Calculator Section Title and Contents Page 1 Rend...

Страница 2: ...ng Master timing Master clock from which all timing is derived This is the basic bit rate B Bit timing D0 D15 Digit Timing 16 digit intervals D2 D15 are the displayed digit time periods Registers do n...

Страница 3: ...c Control 14 Nixie Displays Keyboard 43210987654321 Y Register 60 bits Decimal Point Register 4 bits decoder p Bx bit timing Dx digit timing Timing OP clock rate selection Display Latch 4 bits VCC log...

Страница 4: ...IC161 5 4 3 N108 n D0 n1 n2 n4 n8 1 n2 n4 n8 n1 2 n4 n8 1 2 n4 n8 n1 n2 4 n8 1 n2 4 n8 n1 2 4 n8 1 2 4 n8 n1 n2 n4 8 1 n2 n4 8 n1 2 n4 8 1 2 n4 8 n1 n2 4 8 1 n2 4 8 n1 2 4 8 1 2 4 8 9 12 4 5 3 2 1 n1...

Страница 5: ...25 S11 nQ nKCLR nD nZS nRC nZC nM to X Register NK10 NK36 NK43 NK45 nP0 NK18 M M MR MC 12 IC246 9 10 11 B24 B48 12 11 IC245 13 13 p 5 6 IC236 4 9 8 IC236 10 2 3 1 IC236 11 12 IC236 13 N249 OP B1p D0 5...

Страница 6: ...nQ n S30 Q n S11 N nQ a d n S23 M 11 IC365 6 4 5 8 3 2 1 12 CSCC n S30 Q n S31 nQ n S33 M Q n S32 M Q n S33 D Q n S31 Q N340 N239 11 13 IC375 10 12 9 e b nKCLR CYS16 N339 N241 N269 N368 N266 10 5 6 4...

Страница 7: ...31 1 11 12 IC331 13 8 9 IC331 10 1 n1 2 n1 n2 1 n2 n1 2 1 2 n2 IC312 12 11 13 3 2 9 8 3 2 IC322 IC322 6 IC312 9 10 8 4 5 1 6 5 4 12 11 IC322 IC322 11 12 IC321 13 2 3 IC321 1 8 9 IC321 10 5 6 IC321 4 1...

Страница 8: ...C232 5 6 IC221 4 3 2 IC221 1 11 12 IC221 13 9 8 IC247 10 9 11 12 IC269 13 8 IC269 10 11 12 IC228 IC227 IC226 IC225 IC224 IC223 IC222 13 9 9 9 9 9 9 9 12 11 1 nDL2 nDL4 OP n D15 nD0 3 2 4 IC258 OP 1 2...

Страница 9: ...play decimal points N347 N105 N107 N109 N115 N113 N111 N103 DPNE to Q Flag DPGT to Q Flag to Q Flag DPR to X Register Arithmetic nDP2 nDP3 nDP4 nDP5 nDP6 nDP0 nDP1 NK13 NK12 NK20 IC387 4 5 3 2 6 12 11...

Страница 10: ...15 N352 D15 13 10 11 12 IC359 N343 N245 1 2 3 IC360 4 5 6 IC360 N346 N247 10 9 8 IC360 X X CAD15 CS10S1 CAX CBY CAY CSCC CSTC CBX CBD CA15 nX1 ASUM10 to X Z DP Registers nX4 nX8 CSCC nX1 1 10 9 IC264...

Страница 11: ...P3 nDP4 nDP5 nDP6 B1 V a2 V a2 V a2 V a2 V a2 V a2 V a2 V a2 Facit 1123 Calculator Section Display Latch Display Page 11 Rendition 2014 Mar 6 nDL4 6 5 11 12 13 N119 20K IC111 100pF N220 8 9 10 11 12 1...

Страница 12: ...64 365 374 376 383 384 385 121 122 131 132 141 151 161 162 246 273 315 319 329 333 342 352 358 375 386 368 388 M5330 7 14 231 237 241 242 243 258 316 323 335 341 351 353 359 361 377 378 380 M5340 7 14...

Страница 13: ...480 520 560 600 640 0 S Dn DISP 40 KHz nDISP 100 KHz DISP 625 Hz nDISP 1563 Hz D0 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 one full number cycle in registers Digit held in display latch after B1p 14...

Страница 14: ...cc 5V 0V GND M5320 M5310 M5373 J K K J nQ Q Q nQ nC nC Vcc 5V 0V GND M5304 M5352 M5391 Vcc 5V 0V GND Vcc 5V 0V GND Vcc 5V 0V GND Vcc 5V 0V GND Vcc 5V 0V GND D Q 14 13 12 11 10 9 8 1 2 3 4 5 6 7 14 13...

Страница 15: ...P 37 38 Z 37 38 CSTC CSTC 37 38 Z nDL8 39 40 CYS16 39 40 CSCC CSCC 39 40 nDL8 nDL4 41 42 NR remote NR remote NR remote X ENB 41 42 nOP D14p CYS16 41 42 nDL4 GND 43 44 GND 1 key 1 17 nMANUAL 30 key DP...

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