54AC16374, 74AC16374 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS123B – MARCH 1990 – REVISED APRIL 1996 D D D D D D D D 54AC16374 . . . WD PACKAGE 74AC16374 . . . DL PACKAGE (TOP VIEW) Members of the Texas Instruments Widebus Family 3-State True Outputs Full Parallel Access for Loading Flow-Through Architecture Optimizes PCB Layout Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-µm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings 1OE 1Q1 1Q2 GND 1Q3 1Q4 VCC 1Q5 1Q6 GND 1Q7 1Q8 2Q1 2Q2 GND 2Q3 2Q4 VCC 2Q5 2Q6 GND 2Q7 2Q8 2OE description The ’AC16374 are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. 1 48 2 47 3 46 4 45 5 44 6 43 7 42 8 41 9 40 10 39 11 38 12 37 13 36 14 35 15 34 16 33 17 32 18 31 19 30 20 29 21 28 22 27 23 26 24 25 1CLK 1D1 1D2 GND 1D3 1D4 VCC 1D5 1D6 GND 1D7 1D8 2D1 2D2 GND 2D3 2D4 VCC 2D5 2D6 GND 2D7 2D8 2CLK The ’AC16374 can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock (CLK) input, the Q outputs of the flip-flop take on 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 a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. OE does not affect the internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The 74AC16374 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54AC16374 is characterized for operation over the full military temperature range of –55°C to 125°C. The 74AC16374 is characterized for operation from –40°C to 85°C. 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. EPIC and Widebus are trademarks of Texas Instruments Incorporated. Copyright 1996, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 54AC16374, 74AC16374 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS123B – MARCH 1990 – REVISED APRIL 1996 FUNCTION TABLE INPUTS OE CLK D OUTPUT Q L ↑ H H L ↑ L L L X X Q0 L ↓ X Q0 H X X Z logic symbol† 1OE 1CLK 2OE 2CLK 1D1 1D2 1D3 1D4 1D5 1D6 1D7 1D8 2D1 2D2 2D3 2D4 2D5 2D6 2D7 2D8 1 1EN 48 24 25 47 C1 2EN C2 1D 46 2 1 44 5 43 6 41 8 40 9 38 11 37 12 36 13 2D 35 2 14 33 16 32 17 30 19 29 20 27 22 26 23 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 2 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1Q1 1Q2 1Q3 1Q4 1Q5 1Q6 1Q7 1Q8 2Q1 2Q2 2Q3 2Q4 2Q5 2Q6 2Q7 2Q8 54AC16374, 74AC16374 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS123B – MARCH 1990 – REVISED APRIL 1996 logic diagram (positive logic) 1OE 1CLK 1 2OE 48 2CLK C1 1D1 47 2 1D 24 25 C1 1Q1 2D1 36 1D 13 2Q1 To Seven Other Channels To Seven Other Channels absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±400 mA Maximum power package dissipation at TA = 55°C (in still air)(see Note 2): DL package . . . . . . . . . . . 1.2 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 and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 54AC16374, 74AC16374 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS123B – MARCH 1990 – REVISED APRIL 1996 recommended operating conditions (see Note 3) 54AC16374 VCC VIH Supply voltage VCC = 3 V VCC = 4.5 V High-level input voltage VCC = 5.5 V VCC = 3 V VIL VI VO IOH IOL ∆t/∆v Low-level input voltage NOM MAX 3 5 5.5 3 5 5.5 3.15 0.9 1.35 1.35 1.65 1.65 0 VCC VCC 0 –4 –4 –24 –24 VCC = 5.5 V VCC = 3 V –24 –24 12 12 VCC = 4.5 V VCC = 5.5 V 24 24 24 24 TA Operating free-air temperature NOTE 3: Unused inputs must be held high or low to prevent them from floating. V V 0.9 VCC VCC 0 Input transition rise or fall rate UNIT 3.85 VCC = 3 V VCC = 4.5 V Low-level output current MAX 3.15 0 Output voltage NOM 2.1 3.85 Input voltage MIN 2.1 VCC = 4.5 V VCC = 5.5 V High-level output current 74AC16374 MIN V V V mA mA 0 10 0 10 ns/V –55 125 –40 85 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –50 µA VOH IOH = –4 mA ICC Ci Co TA = 25°C TYP MAX 54AC16374 MIN 74AC16374 MIN 3V 2.9 2.9 2.9 4.5 V 4.4 4.4 4.4 5.5 V 5.4 5.4 5.4 2.58 2.48 2.48 3.94 3.8 3.8 IOL = –24 24 mA A 5.5 V 4.94 IOH = –75 mA† 5.5 V IOL = 12 mA 4.8 4.8 3.85 3.85 MAX UNIT V 3V 0.1 0.1 0.1 4.5 V 0.1 0.1 0.1 5.5 V 0.1 0.1 0.1 3V 0.36 0.44 0.44 4.5 V 0.36 0.44 0.44 5.5 V 0.36 0.44 0.44 1.65 1.65 V IOL = 75 mA† VI = VCC or GND 5.5 V 5.5 V ±0.1 ±1 ±1 µA VO = VCC or GND VI = VCC or GND, 5.5 V ±0.5 ±5 ±5 µA 8 80 80 µA VI = VCC or GND VO = VCC or GND IO = 0 5.5 V 5V 3 pF 5V 11 pF † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. 4 MAX 3V IOL = 24 mA II IOZ MIN 4.5 V IOL = 50 µA VOL VCC POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 54AC16374, 74AC16374 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS123B – MARCH 1990 – REVISED APRIL 1996 timing requirements over recommended operating free-air temperature range VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX fclock tw Clock frequency 0 tsu th Setup time, data before CLK↑ Pulse duration CLK high or low Hold time, data after CLK↑ 60 54AC16374 MIN MAX 0 60 74AC16374 MIN MAX 0 60 UNIT MHz 8.3 8.3 8.3 ns 7.5 7.5 7.5 ns 0 0 0 ns timing requirements over recommended operating free-air temperature range VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX 0 74AC16374 MIN MAX MIN MAX 0 100 0 100 UNIT fclock tw Clock frequency 5 5 5 ns tsu th Setup time, data before CLK↑ 5 5 5 ns Hold time, data after CLK↑ 0 0 0 ns Pulse duration CLK high or low 100 54AC16374 MHz switching characteristics over recommended operating free-air temperature range VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER fmax tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) TA = 25°C MIN TYP MAX 60 CLK Q OE Q OE Q 54AC16374 MIN 74AC16374 MAX MIN 60 MAX 60 UNIT MHz 4.9 12.2 15 4.9 17 4.9 17 4.8 11.9 14.3 4.8 15.7 4.8 15.7 4.3 11.9 14.7 4.3 16.8 4.3 16.8 5.3 15.5 18.7 5.3 21.2 5.3 21.2 4 7.3 9 4 9.8 4 9.8 3.8 7.1 8.8 3.8 9.4 3.8 9.4 ns ns ns switching characteristics over recommended operating free-air temperature range VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER fmax tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) TA = 25°C MIN TYP MAX 100 CLK Q OE Q OE Q 54AC16374 MIN MAX 74AC16374 MIN 100 MAX 100 UNIT MHz 3.8 7.6 9.5 3.8 10.8 3.8 10.8 3.8 7.6 9.5 3.8 10.6 3.8 10.6 3.2 7.2 9 3.2 10.2 3.2 10.2 3.8 8.7 10.7 3.8 12.1 3.8 12.1 3.7 6 7.5 3.7 8.2 3.7 8.2 3.5 5.8 7.3 3.5 7.9 3.5 7.9 ns ns ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd d Power dissipation capacitance per flip-flop flip flop TEST CONDITIONS Outputs enabled Outputs disabled CL = 50 pF, pF f = 1 MHz TYP 49 32 UNIT pF PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 54AC16374, 74AC16374 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS123B – MARCH 1990 – REVISED APRIL 1996 PARAMETER MEASUREMENT INFORMATION 2 × VCC S1 500 Ω From Output Under Test Open GND CL = 50 pF (see Note A) TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC GND 500 Ω LOAD CIRCUIT Timing Input 0V tw 50% 50% th tsu VCC Input VCC 50% VCC 50% 50% Data Input 0V 0V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS VCC Input 50% 50% 0V tPHL tPLH In-Phase Output 50% VCC VOH 50% VCC VOL 50% VCC VOH 50% VCC VOL VCC Output Waveform 2 S1 at GND (see Note B) 50% 50% 0V tPZL [ VCC tPLZ Output Waveform 1 S1 at 2 × VCC (see Note B) tPLH tPHL Out-of-Phase Output Output Control (low-level enabling) 50% VCC VOL tPHZ tPZH VOLTAGE WAVEFORMS 20% VCC 50% VCC 80% VCC VOH [0V VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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