100370 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Low Power Universal Demultiplexer/Decoder

February 1990
Revised August 2000
100370
Low Power Universal Demultiplexer/Decoder
General Description
The 100370 universal demultiplexer/decoder functions as
either a dual 1-of-4 decoder or as a single 1-of-8 decoder,
depending on the signal applied to the Mode Control (M)
input. In the dual mode, each half has a pair of active-LOW
Enable (E) inputs. Pin assignments for the E inputs are
such that in the 1-of-8 mode they can easily be tied
together in pairs to provide two active-LOW enables (E_1a to
E_1b, E_2a to E_2b). Signals applied to auxiliary inputs H_a, H_b
and H_c determine whether the outputs are active HIGH or
active LOW. In the dual 1-of-4 mode the Address inputs are
A_0a, A_1a and A_0b, A_1b with A_2a unused (i.e., left open, tied
to V_EE or with LOW signal applied). In the 1-of-8 mode, the
Address inputs are A_0a, A_1a, A_2a with A_0b and A_1b LOW or
OPEN. All inputs have 50 kΩ pull-down resistors.
Features
s 35% power reduction of the 100170
s 2000V ESD protection
s Pin/function compatible with 100170
s Voltage compensated operating range = −4.2V to −5.7V
Ordering Code:
Order Number Package Number
Package Description
100370PC
N24E
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide
100370QC
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
100370QI
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
Industrial Temperature Range (−40°C to +85°C)
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
24-Pin DIP
28-Pin PLCC
© 2000 Fairchild Semiconductor Corporation DS010649
www.fairchildsemi.com