74gtl1655 STMicroelectronics, 74gtl1655 Datasheet
74gtl1655
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74gtl1655 Summary of contents
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... SWITCHING NOISE IN PARALLEL COMUNICATIONS . PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 1655 DESCRIPTION The 74GTL1655 devices are 16-bit high-drive (100mA), low-output-impedance universal bus transceivers designed for backplane applications. The 74GTL1655 devices provide live-insertion capability for backplane applications by tolerating active signals on the data ports when the devices are powered off ...
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... LEBA), and clock (CLK) inputs. For A-to-B data flow, the devices operate in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLK is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK ...
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... TRUTH TABLE ERC ERC NOMINAL VOLTAGE V CC GND OUTPUT (2) Previous State B0 (3) Previous State B0 OUTPUTS A PORT Active Z Active Z Z OUTPUT B PORT EDGE RATE Slow Fast 74GTL1655 MODE Isolation Transparent Transparent Registered Registered B PORT Active Active 3/14 ...
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... LOGIC DIAGRAM 4/14 ...
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... V can be adjusted to optimaze noise margin (typ two-thirds V REF Parameter ERC REF Parameter GTL GTL+ GTL GTL+ B port other B port other B port other A port A port B port ) TT 74GTL1655 Value -0.5 to +4.6 -0.5 to +4.6 -0.5 to +4.6 -0.5 to +4.6 -0 200 -65 to +150 300 Value Min. Typ. Max. 3.0 3.3 3.6 1.14 1.2 1.26 1.35 1 ...
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... DC SPECIFICATIONS Symbol Parameter V High Level Input Voltage IK V High Level Ouput OHA Voltage A Port V Low Level Ouput Voltage OLA A Port V Low Level Ouput Voltage OLB B Port I Input Current Control I B Port I Power Off Leakage off Current I Bus Hold A Port Input ...
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... R =12.5 C =30pF ERC =GND R =12.5 C =30pF ERC =GND R =12.5 C =30pF ERC =500 C =50pF =500 C =50pF =500 C =50pF L L 74GTL1655 Value - °C Min. Typ. Max 1.2 -1 100 100 Value - °C Min. Typ. Max. 160 1.5 5.2 1.5 6.2 1.5 5.5 1.5 5.8 1.5 5.8 1.5 6.4 1.5 5.4 1.5 6.2 1.5 4.3 1.5 4.6 1.5 4.3 1 ...
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... ERC =GND R =12.5 C =30pF ERC =GND R =12.5 C =30pF ERC =GND R =12.5 C =30pF ERC =GND R =12.5 C =30pF ERC L L 74GTL1655 Value - °C Min. Typ. Max. 1 4.6 1 6.1 2.7 2.8 2.6 0.4 0 Value - °C Min. Typ. Max. 160 1.5 5.1 1.5 6.5 1.5 5.4 1.5 6.2 1.5 5 ...
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... Symbol Parameter t Propagation Delay Time PLH PHL t Propagation Delay Time PLH PHL t Propagation Delay Time PLH LEBA PHL t Enable Delay Time EN OEBA Disable Delay Time DIS OEBA Slew rate Slew rate B output both transition (0 ...
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... TEST CIRCUIT FOR "A" OUTPUTS t t PLH, PHL t t PZL, PLZ t t PZH, PHZ C = 50pF or equivalent (includes jig and probe capacitance 500 or equivalent pulse generator (typically OUT t =t <=2.5ns r f TEST CIRCUIT FOR "B" OUTPUTS ...
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... WAVEFORM 1: PULSE DURATION (A PORT, CONTROL PIN) WAVEFORM 2: CLOCK TO B PORT PROPAGATION DELAY TIME WAVEFORM 3: CLOCK TO A PORT PROPAGATION DELAY TIME 74GTL1655 11/14 ...
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... WAVEFORM 4: SETUP AND HOLD TIME WAVEFORM 4: ENABLE AND DISABLE TIME (A PORT) 12/14 ...
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... D 16 6.0 e 0.5 BSC K 0° PIN 1 IDENTIFICATION 1 mm. TYP MAX. MIN. 1.1 0.15 0.002 0.9 0.27 0.0067 0.20 0.0035 17.1 0.665 8.1 6.2 0.236 8° 0.75 0.020 74GTL1655 inch TYP. MAX. 0.043 0.006 0.035 0.011 0.0079 0.673 0.318 0.244 0.0197 BSC 0° 0.030 7187824A 8° 13/14 ...
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... Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...
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... This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components. ...