|
Details, datasheet, quote on part number:SN54LVC374A
| |
Datasheet text preview:
SN54LVC374A, SN74LVC374A OCTAL EDGE TRIGGERED D TYPE FLIP FLOPS WITH 3 STATE OUTPUTS
SCAS296M JANUARY 1993 REVISED JANUARY 2003
D D D D D D
Operate From 1.65 V to 3.6 V Inputs Accept Voltages to 5.5 V Max tpd of 6.5 ns at 3.3 V Typical VOLP (Output Ground Bounce) 2 V at VCC = 3.3 V, TA = 25°C Support Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
D Ioff Supports Partial-Power-Down Mode D D
Operation Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 2000-V Human-Body Model (A114-A) 200-V Machine Model (A115-A) 1000-V Charged-Device Model (C101)
VCC
1D 1Q OE VCC
OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK
1
OE
20 19 8Q 18 8D 17 7D 16 7Q 15 6Q 14 6D 13 5D 12 5Q
1Q 1D 2D 2Q 3Q 3D 4D 4Q
2 3 4 5 6 7 8 9 10 11
2D 2Q 3Q 3D 4D
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
8Q 8D 7D 7Q 6Q 6D
SN54LVC374A . . . J OR W PACKAGE SN74LVC374A . . . DB, DGV, DW, N, NS, OR PW PACKAGE (TOP VIEW)
SN74LVC374A . . . RGY PACKAGE (TOP VIEW)
SN54LVC374A . . . FK PACKAGE (TOP VIEW)
description/ordering information
ORDERING INFORMATION
TA PDIP N QFN RGY SOIC DW DW 40°C to 85°C 85 C SOP NS SSOP DB TSSOP PW PW TVSOP DGV CDIP J 55°C to 125°C CFP W LCCC FK PACKAGE Tube Tape and reel Tube Tape and reel Tape and reel Tape and reel Tube Tape and reel Tape and reel Tube Tube Tube ORDERABLE PART NUMBER SN74LVC374AN SN74LVC374ARGYR SN74LVC374ADW SN74LVC374ADWR SN74LVC374ANSR SN74LVC374ADBR SN74LVC374APW SN74LVC374APWR SN74LVC374ADGVR SNJ54LVC374AJ SNJ54LVC374AW SNJ54LVC374AFK LC374A LC374A SNJ54LVC374AJ SNJ54LVC374AW LVC374A LVC374A LC374A TOP-SIDE MARKING SN74LVC374AN LC374A
SNJ54LVC374AFK Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
GND
CLK
Copyright 2003, Texas Instruments Incorporated
On products compliant to MIL PRF 38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
4Q GND CLK 5Q 5D
1
SCAS296M JANUARY 1993 REVISED JANUARY 2003
SN54LVC374A, SN74LVC374A OCTAL EDGE TRIGGERED D TYPE FLIP FLOPS WITH 3 STATE OUTPUTS
description/ordering information (continued)
The SN54LVC374A octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVC374A octal edge-triggered D-type flip-flop is designed for 1.65-V to 3.6-V VCC operation. These devices feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. These devices are particularly suitable for implementing buffer registers, input/output (I/O) ports, bidirectional bus drivers, and working registers. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the 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 interface or pullup components. OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment. These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
FUNCTION TABLE (each flip-flop) INPUTS OE L L L H CLK H or L X D H L X X OUTPUT Q H L Q0 Z
logic diagram (positive logic)
OE 1
CLK
11 C1 2
1D
3
1D
1Q
To Seven Other Channels
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54LVC374A, SN74LVC374A OCTAL EDGE TRIGGERED D TYPE FLIP FLOPS WITH 3 STATE OUTPUTS
SCAS296M JANUARY 1993 REVISED JANUARY 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 6.5 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 6.5 V Voltage range applied to any output in the high-impedance or power-off state, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 6.5 V Voltage range applied to any output in the high or low state, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Continuous output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA Package thermal impedance, JA (see Note 3): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W (see Note 3): DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°C/W (see Note 3): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W (see Note 3): N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W (see Note 3): NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W (see Note 3): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W (see Note 4): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The value of VCC is provided in the recommended operating conditions table. 3. The package thermal impedance is calculated in accordance with JESD 51-7. 4. The package thermal impedance is calculated in accordance with JESD 51-5.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
|
|
