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Micrel, Inc.
UNIVERSAL DEMULTIPLEXER/ DECODER
DESCRIPTION
SY100S370
SY100S370
FEATURES
s Max. propagation delay of 1200ps s IEE min. of -92mA s Industry standard 100K ECL levels s Extended supply voltage option: VEE = -4.2V to -5.5V s Voltage and temperature compensation for improved noise immunity s Internal 75K input pull-down resistors s 60% faster than National or Signetics s Approximately 40% lower power than Fairchild s Function and pinout compatible with Fairchild F100K s Available in 24-pin CERPACK and 28-pin PLCC packages
The SY100S370 is a universal demultiplexer/decoder that can be used as either a dual 1-of-4 decoder or as a single 1-of-8 decoder and is designed for use in highperformance ECL systems. The Mode control (M) input determines the function. In the dual 1-of-4 mode, each 4input group has a pair of active-LOW Enable (E) inputs. The Enable pins are assigned such that in the single 1-of8 mode they can be tied together in pairs to result in two active-LOW Enable inputs. E1a will be tied to E1b and E2a to E2b. The auxiliary inputs (Hn) are used to determine whether the outputs are active-HIGH or active-LOW. The address inputs for the dual 1-of-4 mode are A0a, A1a, A0b. A2a is unused. In the 1-of-8 mode, the address inputs are A0a, A1a, A2a. The inputs on the device have 75K pull-down resistors.
PIN NAMES
Pin Ana, Anb Ena, Enb M Ha Hb Hc Z0 - Z7 Zna, Znb VEES VCCA Function Address Inputs (n = 0,1,2) Enable Inputs (n = 1,2) Mode Control Input Z0 - Z3 (Z0a - Z3a) Polarity Select Input Z4 - Z7 (Z0b - Z3b) Polarity Select Input Common Polarity Select Input Single 1-of-8 Data Outputs Dual 1-of-4 Data Outputs (n = 1...4) VEE Substrate VCCO for ECL Outputs
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Rev.: H
Amendment: /0
Issue Date: March 2006
Micrel, Inc.
SY100S370
PACKAGE/ORDERING INFORMATION
Z1a (Z1) Z2a (Z2) M A1a VEES
Ordering Information
Part Number
4 3 2 1 28 27 26 Z0a (Z0) Z3a (Z3) VCCA VCC VCC Z1b (Z5) Z2b (Z6)
A2a
A0a
11 10 9 8 7 6 5 E1a E1b VEE VEES E2b E2a Ha 12 13 14 15 16 17 18
Package Type F24-1 F24-1 J28-1 J28-1 J28-1 J28-1
Operating Range Commercial Commercial Commercial Commercial Commercial Commercial
Package Marking SY100S370FC SY100S370FC SY100S370JC SY100S370JC SY100S370JZ with Pb-Free bar-line indicator SY100S370JZ with Pb-Free bar-line indicator
Lead Finish Sn-Pb Sn-Pb Sn-Pb Sn-Pb Matte-Sn Matte-Sn
SY100S370FC SY100S370FCTR(1) SY100S370JC SY100S370JCTR(1) SY100S370JZ(2) SY100S370JZTR(1, 2)
Top View PLCC J28-1
19 20 21 22 23 24 25
Hb A0b VEES A1b Z3b (Z7) Z0b (Z4) Hc
Notes: 1. Tape and Reel. 2. Pb-Free package is recommended for new designs.
28-Pin PLCC (J28-1)
E2a E2b VEE E1b E1a Ha Hc Hb A0b A1b Z3b (Z7) Z0b (Z4) 1 2 3 4 5 6
24 23 22 21 20 19 18 Top View Flatpack F24-1 17 16 15 14
A2a M A1a A0a Z1a (Z1) Z2a (Z2)
13 7 8 9 10 11 12 Z2b (Z6) Z1b (Z5) VCC VCCA Z3a (Z3) Z0a (Z0)
24-Pin Cerpack (F24-1)
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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Micrel, Inc.
SY100S370
BLOCK DIAGRAM
A0a A1a E1a E2a A2a M Z1a (Z1) Z0a (Z0) Z2a (Z2)
Z3a (Z3)
Z2b (Z6) A0b Z0b (Z4)
Z1b (Z5)
A1b E1b E2b Ha Hc Hb
Z3b (Z7)
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Micrel, Inc.
SY100S370
TRUTH TABLES(1)
Dual 1-of-4 Mode (M = A2a = Hc = LOW) Inputs E1a,E1b H X L L L L E2a,E2b X H L L L L A1a,A1b X X L L H H A0a,A0b X X L H L H Active HIGH Outputs (Ha and Hb Inputs HIGH) Z0a,Z0b L L H L L L Z1a,Z1b L L L H L L Z2a,Z2b L L L L H L Z3a,Z3b L L L L L H Active LOW Outputs (Ha and Hb Inputs LOW) Z0a,Z0b H H L H H H Z1a,Z1b H H H L H H Z2a,Z2b H H H H L H Z3a,Z3b H H H H H L
Single 1-of-8 Mode (M = HIGH; A0b = A1b = Ha = Hb = LOW) Inputs E1 H X L L L L L L L L E2 X H L L L L L L L L A2a X X L L L L H H H H A1a X X L L H H L L H H A0a X X L H L H L H L H Z0 L L H L L L L L L L Z1 L L L H L L L L L L Active HIGH Outputs* (Hc Input HIGH) Z2 L L L L H L L L L L Z3 L L L L L H L L L L Z4 L L L L L L H L L L Z5 L L L L L L L H L L Z6 L L L L L L L L H L Z7 L L L L L L L L L H
Note: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care * for Hc = LOW, output states are complemented E1 = E1a and E1b wired; E2 = E2a and E2b wired
DC ELECTRICAL CHARACTERISTICS
VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND
Symbol IIH Parameter Input HIGH Current Hc, A0a, A1a, A2a All Others Power Supply Current Min. -- -- -92 Typ. -- -- -73 Max. 310 250 -46 mA Inputs Open Unit A Condition VIN = VIH (Max.)
IEE
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Micrel, Inc.
SY100S370
AC ELECTRICAL CHARACTERISTICS CERPACK
VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND
TA = 0C Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ena, Enb to Output Propagation Delay Ana, Anb to Output Propagation Delay Ha, Hb, Hc to Output Propagation Delay M to Output Transition Time 20% to 80%, 80% to 20% Min. 300 500 500 600 300 Max. 1300 1600 1600 2100 900 TA = +25C Min. 300 500 500 600 300 Max. 1300 1600 1600 2100 900 TA = +85C Min. 300 500 500 600 300 Max. 1300 1600 1600 2100 900 Unit ps ps ps ps ps Condition
PLCC
VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND
TA = 0C Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ena, Enb to Output Propagation Delay Ana, Anb to Output Propagation Delay Ha, Hb, Hc to Output Propagation Delay M to Output Transition Time 20% to 80%, 80% to 20% Min. 300 500 500 600 300 Max. 1200 1500 1500 2100 900 TA = +25C Min. 300 500 500 600 300 Max. 1200 1500 1500 2100 900 TA = +85C Min. 300 500 500 600 300 Max. 1200 1500 1500 2100 900 Unit ps ps ps ps ps Condition
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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Micrel, Inc.
SY100S370
TIMING DIAGRAM
0.7 0.1 ns INPUT
0.7 0.1 ns -0.95V 80% 50% 20% -1.69V tPHL tPLH 80% 50% 20% tTLH tTHL
OUTPUT
Propagation Delay and Transition Times
Note: VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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Micrel, Inc.
SY100S370
24-PIN CERPACK (F24-1)
Rev. 03
M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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Micrel, Inc.
SY100S370
28-PIN PLCC (J28-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
USA
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
http://www.micrel.com
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2006 Micrel, Incorporated. M9999-032406 hbwhelp@micrel.com or (408) 955-1690
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