74ABT16823 Series
18-Bit Bus Interface Flip-Flops With 3-State Outputs
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Current - Output High, Low▲▼ | Supplier Device Package | Mounting Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Trigger Type | Package / Case▲▼ | Package / Case▲▼ | Package / Case | Current - Quiescent (Iq)▲▼ | Max Propagation Delay @ V, Max CL▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Input Capacitance▲▼ | Number of Elements▲▼ | Output Type | Type | Clock Frequency▲▼ | Number of Bits per Element▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments SN74ABT16823DLFlip Flop 2 Element D-Type 9 Bit Positive Edge 56-BSSOP (0.295", 7.50mm Width) | 0.03200000151991844 A, 0.06400000303983688 A | 56-SSOP | Surface Mount | 85 °C | -40 °C | Positive Edge | 0.007493000011891127 m | 0.007499999832361937 m | 56-BSSOP | 0.0005000000237487257 A | 5.5000000109828315e-9 s | 5.5 V | 4.5 V | 3.4999999860146898e-12 F | 2 ul | Tri-State, Non-Inverted | D-Type | 150000000 Hz | 9 ul |
Texas Instruments SN74ABT16823DLG4Flip Flop 2 Element D-Type 9 Bit Positive Edge 56-BSSOP (0.295", 7.50mm Width) | 0.03200000151991844 A, 0.06400000303983688 A | 56-SSOP | Surface Mount | 85 °C | -40 °C | Positive Edge | 0.007493000011891127 m | 0.007499999832361937 m | 56-BSSOP | 0.0005000000237487257 A | 5.5000000109828315e-9 s | 5.5 V | 4.5 V | 3.4999999860146898e-12 F | 2 ul | Tri-State, Non-Inverted | D-Type | 150000000 Hz | 9 ul |
Key Features
• Members of the Texas Instruments WidebusTMFamilyState-of-the-Art EPIC-IIBTMBiCMOS Design Significantly Reduces Power DissipationHigh-Impedance State During Power Up and Power DownESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Typical VOLP(Output Ground Bounce) < 1 V at VCC= 5 V, TA= 25°CDistributed VCCand GND Pin Configuration Minimizes High-Speed Switching NoiseFlow-Through Architecture Optimizes PCB LayoutHigh-Drive Outputs (-32-mA IOH, 64-mA IOL)Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center SpacingsWidebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.Members of the Texas Instruments WidebusTMFamilyState-of-the-Art EPIC-IIBTMBiCMOS Design Significantly Reduces Power DissipationHigh-Impedance State During Power Up and Power DownESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Typical VOLP(Output Ground Bounce) < 1 V at VCC= 5 V, TA= 25°CDistributed VCCand GND Pin Configuration Minimizes High-Speed Switching NoiseFlow-Through Architecture Optimizes PCB LayoutHigh-Drive Outputs (-32-mA IOH, 64-mA IOL)Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center SpacingsWidebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.
Description
AI
These 18-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
The 'ABT16823 can be used as two 9-bit flip-flops or one 18-bit flip-flop. With the clock-enable () input low, the D-type flip-flops enter data on the low-to-high transitions of the clock. Takinghigh disables the clock buffer, latching the outputs. Taking the clear () input low causes the Q outputs to go low independently of the clock.
A buffered output-enable () input can be used to place the nine outputs in either a normal logic state (high or low logic level) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.
does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
When VCCis between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V,should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.
The SN54ABT16823 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16823 is characterized for operation from -40°C to 85°C.
These 18-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
The 'ABT16823 can be used as two 9-bit flip-flops or one 18-bit flip-flop. With the clock-enable () input low, the D-type flip-flops enter data on the low-to-high transitions of the clock. Takinghigh disables the clock buffer, latching the outputs. Taking the clear () input low causes the Q outputs to go low independently of the clock.
A buffered output-enable () input can be used to place the nine outputs in either a normal logic state (high or low logic level) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.
does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
When VCCis between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V,should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.
The SN54ABT16823 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16823 is characterized for operation from -40°C to 85°C.