MC10E141, MC100E141 5V ECL 8-Bit Shift Register Description The MC10E/100E141 is an 8-bit full-function shift register. The E141 performs serial/parallel in and serial/parallel out, shifting in either direction. The eight inputs D D accept parallel input data, 0 7 MC10E141, MC100E141 Table 1. PIN DESCRIPTION SEL0 DL D D D V Q 7 6 5 CCO 7 PIN FUNCTION 25 24 23 22 21 20 19 SEL1 Q 26 18 6 D D ECL Parallel Data Inputs 0 7 DL, DR ECL Serial Data Inputs CLK Q 27 17 5 SEL0, SEL1 ECL Mode Select In Inputs CLK ECL Clock MR 28 16 V CC Q Q ECL Data Outputs 0 7 MR ECL Master Reset 1 Pinout: 28-Lead V 15 NC EE V , V Positive Supply* CC CCO PLCC (Top View) V Negative Supply EE DR 2 NC No Connect 14 V CCO *From V pin to each V pin is an internal 100 CC CCO D 3 13 Q 0 4 resistor. D 4 1 Q 12 3 Table 2. FUNCTION TABLE 567 8 9 10 11 SEL0 SEL1 FUNCTION D D D V Q Q Q 2 3 4 CCO 0 1 2 L Load LL * All V and V pins are tied together on the die. CC CCO H Shift Right (D to D ) LL n n + 1 L Shift Left (D to D ) Warning: All V , V , and V pins must be externally HH n n 1 CC CCO EE H Hold connected to Power Supply to guarantee proper operation. HH Figure 1. 28-Lead Pinout DL BITS 1 6 Q D Q Q D D DR R R R D D 7 Q Q Q 0 7 D 0 SEL1 SEL0 CLK MR Figure 2. Logic Diagram Table 3. EXPANDED FUNCTION TABLE Function DL DR SEL0 SEL1 MR CLK Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Load X X L L L Z D0 D1 D2 D3 D4 D5 D6 D7 Shift Right X L L H L Z L Q0 Q1 Q2 Q3 Q4 Q5 Q6 X H L H L Z H L Q0 Q1 Q2 Q3 Q4 Q5 Shift Left L X H L L Z L Q0 Q1 Q2 Q3 Q4 Q5 L H X H L L Z Q0 Q1 Q2 Q3 Q4 Q5 L H Hold X X H H L Z Q0 Q1 Q2 Q3 Q4 Q5 L H X X H H L Z Q0 Q1 Q2 Q3 Q4 Q5 L H Reset X X X X H X L L L L L L L L