Heathkit SB-104 - Page 74

Page 278
,~c-j=** -=*:-*g
ORIVi OUTPUTS
r
VCCf ga bcd e
IC151.
IC154.
PART
CURRENT PROGRAMMING' RIPPLE BLANKING INPUTIRBII
INPUT 1 - ZERO SUPPRESSION
BLANKING
INPUTIRIPPLE BLANKING
OUTPUT
IBllRBal
NOTE: LOGIC "I" ON ALL INPUTS AND RBa IS DEFINED AS THE
HIGH TTLIDTL STATE.
LOGIC
"0" ON OUTPUTS a-9 IS
DEFINED AS THE LOW OR CURRENT SINKING STATE IDISPLAV
ON
STATE].
X IS DEFINED AS "DON'T CARE" CONDITION