7460 DUAL 4-INPUT EXPANDER

REMOVE JUMPERS:
  AA1
  AC1
  AA2
  AC2
  AH2
  AT2
CONNECT:
  AA1 tester to AA2 UUT 
  AC1 tester to AC2 UUT
  AH2 UUT to GROUND
  AT2 UUT to +5V


CONNECT DMM TO EXPANDER OUTPUTS!!!!!!
EXPANDER OUTPUTS ARE HI = 3.2v, LO = 0.00V

PINS
 1 I AA1 E1-1   7450 pin 1  1A
 2 I AB2 E1-2   7450 pin 2  1B
 3 I AC1 E1-3   7450 pin 3  1C
 4 I AS2 E1-15  7450 pin 13 1D
 5 O AP2 E1-13  7450 pin 11 1X   =    (1A AND 1B AND 1C AND 1C)
 6 O AR2 E1-14  7450 pin 12 1X-N =    (1A AND 1B AND 1C AND 1C)
 7 I AD2 E1-4   7450 pin 4  2A
 8 I AE2 E1-5   7450 pin 5  2B
 9 I AF2 E1-6   7450 pin 6  2C
10 I AL2 E1-10  7450 pin 8  2D  
11 O AN2 E1-12  7450 pin 10 2X   =    (2A AND 2B AND 2C AND 2C)
12 O AM2 E1-11  7450 pin 9  2X-N =    (2A AND 2B AND 2C AND 2C) (EXPANDER, HI= ?V, LO= ?V)
13 I AH2 E1-7   7450 pin 7 GROUND
14 I AJ2 E1-8   (UNUSED PIN OF 16-PIN SOCKET)
15 I AK2 E1-9   (UNUSED PIN OF 16-PIN SOCKET)
16 I AT2 E1-16  7450 pin 14 VCC

IIIIOOIIIIOOIIII



; START WITH ALL INPUTS ZERO



; OUTPUT 1,2 LO:        AP2,AR2 1X  0.0v	AN2,AM2 2X  0.0V
0000XX0000XX0000

; ALL INPUTS HI

; OUTPUT 1,2 HI:        AP2,AR2 1X  3.2		AN2,AM2 2X  3.2V
1111XX1111XX

; WITH ALL OTHER INPUTS HI, GRAY CODE EACH GATE



; OUTPUT 1 LO:          AP2,AR2 1X  0.0v
1110
1100
1101
1001
1000
1010
1011
0011
0010
0000
0001
0101
0100
0110
0111
; OUTPUT 1 HI:          AP2,AR2 1X  3.2v
1111

; OUTPUT 2 LO:	 					AN2,AM2 2X  0.0V
      1110
      1100
      1101
      1001
      1000
      1010
      1011
      0011
      0010
      0000
      0001
      0101
      0100
      0110
      0111
; OUTPUT 2 HI:	 					AN2,AM2 2X  3.2V
      1111


; ALL INPUTS LO

; OUTPUT 1,2 LO:	 AP2,AR2 1X  0.0v		AN2,AM2 2X  0.0V
0000  0000

; WITH ALL OTHER INPUTS LO, GRAY CODE EACH GATE

0010
0011
0111
0110
0100
0101
1101
1100
1110
; OUTPUT 1 HI:	 	AP2,AR2 1X  3.2v
1111
; OUTPUT 1 LO:	 	AP2,AR2 1X  0.0v
1011
1010
1000
1001
1001
0000
      0010
      0011
      0111
      0110
      0100
      0101
      1101
      1100
      1110
; OUTPUT 2 HI:	 					AN2,AM2 2X  3.2V
      1111
; OUTPUT 2 LO:	 					AN2,AM2 2X  0.0V
      1011
      1010
      1000
      1001
      1001
      0000



;****************************
; SHOULD TEST ALL 256 PATTERNS
;****************************


END
