SN54FB2040 Selling Leads, Price trend, SN54FB2040 DataSheet download, circuit diagram from SeekIC.com

Features: Compatible With IEEE Std 1194.1-1991 (BTL)TTL A Port, Backplane Transceiver Logic (BTL) B PortOpen-Collector B-Port Outputs Sink 100 mAIsolated Logic-Ground and Bus-Ground Pins Reduce NoiseHigh-Impedance State During Power Up and Power DownBIAS VCC Pin Minimizes Signal Distortion During ...

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SeekIC No. : 004496813 Detail

SN54FB2040: Features: Compatible With IEEE Std 1194.1-1991 (BTL)TTL A Port, Backplane Transceiver Logic (BTL) B PortOpen-Collector B-Port Outputs Sink 100 mAIsolated Logic-Ground and Bus-Ground Pins Reduce Nois...

SN54FB2040 Data Sheet

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Part Number:: SN54FB2040
Supply Ability:: 5000

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Product Details

Description

Features:

Compatible With IEEE Std 1194.1-1991 (BTL)
TTL A Port, Backplane Transceiver Logic (BTL) B Port
Open-Collector B-Port Outputs Sink 100 mA
Isolated Logic-Ground and Bus-Ground Pins Reduce Noise
High-Impedance State During Power Up and Power Down
BIAS VCC Pin Minimizes Signal Distortion During Live Insertion or Withdrawal
B-Port Biasing Network Preconditions the Connector and PC Trace to the BTL High-Level Voltage
Package Options Include Plastic Quad Flat (RC) and Ceramic Flat (WD) Packages

Pinout

Connection Diagram

Specifications

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
Input voltage range, V_I: Except B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .1.2 V to 7 V
                                       B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .1.2 V to 3.5 V
Voltage range applied to any B output in the disabled or power-off state, V_O . . . . . . . .0.5 V to 3.5 V
Voltage range applied to any output in the high state, V_O: A port . . . . . . . . . . . . . . . . . . 0.5 V to V_CC
Input clamp current, I_IK: Except B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . .40 mA
                                        B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 18 mA
Current applied to any single output in the low state, I_O: A port . . . . . . . . . . . . . . . . . . . . . . . . .48 mA
                                                                                           B port . . . . . . . . . . . . . .. . . . . . . . . . .200 mA
Package thermal impedance, _JA (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65°C to 150°C

Description

The SN54FB2040 is 8-bit transceivers designed to translate signals between TTL and backplane transceiver logic (BTL) environments.

The B port operates at BTL-signal levels. The open-collector B ports are specified to sink 100 mA. Two output enables (OEB and OEB) are provided for the B outputs. When OEB SN54FB2040 is high and OEB is low, the B port is active and reflects the inverse of the data present at the A-input pins. When OEB is low, OEB is high, or VCC is less than 2.1 V, the B port is turned off.

The A port operates at TTL-signal levels and has separate input and output pins. The A outputs reflect the inverse of the data at the B port when the A-port output enable (OEA) is high. When OEA is low or when VCC is less than 2.1 V, the A outputs are in the high-impedance state. Pins are allocated for the four-wire IEEE Std 1149.1 (JTAG) test bus. TMS and TCK are not connected, and TDI is shorted to TDO.

BIAS V_CC establishes a voltage between 1.62 V and 2.1 V on the BTL outputs when V_CC is not connected.

The SN54FB2040 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74FB2040 is characterized for operation from 0°C to 70°C.

SN54FB2040

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