7440 DUAL 4-INPUT NAND

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


PINS
 1 I AA1 E1-1   7440 pin 1  1A
 2 I AB2 E1-2   7440 pin 2  1B
 3 I AD2 E1-4   7440 pin 4  1C
 4 I AE2 E1-5   7440 pin 5  1D
 5 O AF2 E1-6   7440 pin 6  1Y = 1A NAND 1B NAND 1C NAND 1D
 6 I AM2 E1-11  7440 pin 9  2A
 7 I AN2 E1-12  7440 pin 10 2B
 8 I AR2 E1-14  7440 pin 12 2C
 9 I AS2 E1-15  7440 pin 13 2D
10 O AL2 E1-10  7440 pin 8  2Y = 1A NAND 2B NAND 2C NAND 2D
11 I AC1 E1-3   7440 pin 3  n.c.
12 I AP2 E1-13  7440 pin 11 n.c.
13 I AH2 E1-7   7440 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  7440 pin 14 VCC

IIIIOIIIIOIIIIII

; START WITH ALL INPUTS ZERO
0000100001000000

; ALL INPUTS ONES
1111011110

; WITH ALL OTHER INPUTS HI, GRAY CODE EACH GATE
11101
11001
11011
10011
10001
10101
10111
00111
00101
00001
00011
01011
01001
01101
01111
11110
     11101
     11001
     11011
     10011
     10001
     10101
     10111
     00111
     00101
     00001
     00011
     01011
     01001
     01101
     01111
     11110

; ALL INPUTS LO
0000100001

; WITH ALL OTHER INPUTS LO, GRAY CODE EACH GATE
00011
00111
00101
01101
01111
01011
01001
11001
11011
11110
11101
10101
10111
10011
10001
00001
     00011
     00111
     00101
     01101
     01111
     01011
     01001
     11001
     11011
     11110
     11101
     10101
     10111
     10011
     10001
     00001

END
