SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 D D D D D D D D D SN54ABT16823 . . . WD PACKAGE SN74ABT16823 . . . DGG OR DL PACKAGE (TOP VIEW) Members of the Texas Instruments Widebus Family State-of-the-Art EPIC-ΙΙB BiCMOS Design Significantly Reduces Power Dissipation High-Impedance State During Power Up and Power Down ESD 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°C Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise Flow-Through Architecture Optimizes PCB Layout High-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 Spacings 1CLR 1OE 1Q1 GND 1Q2 1Q3 VCC 1Q4 1Q5 1Q6 GND 1Q7 1Q8 1Q9 2Q1 2Q2 2Q3 GND 2Q4 2Q5 2Q6 VCC 2Q7 2Q8 GND 2Q9 2OE 2CLR description 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. 1 56 2 55 3 54 4 53 5 52 6 51 7 50 8 49 9 48 10 47 11 46 12 45 13 44 14 43 15 42 16 41 17 40 18 39 19 38 20 37 21 36 22 35 23 34 24 33 25 32 26 31 27 30 28 29 1CLK 1CLKEN 1D1 GND 1D2 1D3 VCC 1D4 1D5 1D6 GND 1D7 1D8 1D9 2D1 2D2 2D3 GND 2D4 2D5 2D6 VCC 2D7 2D8 GND 2D9 2CLKEN 2CLK The ’ABT16823 can be used as two 9-bit flip-flops or one 18-bit flip-flop. With the clock-enable (CLKEN) input low, the D-type flip-flops enter data on the low-to-high transitions of the clock. Taking CLKEN high disables the clock buffer, latching the outputs. Taking the clear (CLR) input low causes the Q outputs to go low independently of the clock. A buffered output-enable (OE) 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. OE 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. 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. Widebus and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated. Copyright 1997, Texas Instruments Incorporated 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 description (continued) When VCC is 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, OE should be tied to VCC through 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. FUNCTION TABLE (each 9-bit flip-flop) INPUTS 2 CLR CLKEN CLK L L X X X L L H L ↑ H H L H L ↑ L L L H L L X Q0 L H H X X Q0 H X X X X Z POST OFFICE BOX 655303 D OUTPUT Q OE • DALLAS, TEXAS 75265 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 logic symbol† 2 1OE 1CLR 1 55 1CLKEN 1CLK 2OE 56 27 28 2CLR 2CLKEN 2CLK 1D1 1D2 1D3 1D4 1D5 1D6 1D7 1D8 1D9 2D1 2D2 2D3 2D4 2D5 2D6 2D7 2D8 2D9 30 29 54 EN1 R2 G3 3C4 EN5 R6 G7 7C8 4D 52 1, 2 3 5 51 6 49 8 48 9 47 10 45 12 44 13 43 14 42 8D 41 5, 6 15 16 40 17 38 19 37 20 36 21 34 23 33 24 31 26 1Q1 1Q2 1Q3 1Q4 1Q5 1Q6 1Q7 1Q8 1Q9 2Q1 2Q2 2Q3 2Q4 2Q5 2Q6 2Q7 2Q8 2Q9 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 logic diagram (positive logic) 1OE 1CLR 2 1 55 1CLKEN CE R 1CLK 56 C1 1D1 3 1Q1 54 1D To Eight Other Channels 2OE 2CLR 2CLKEN 27 28 30 CE R 2CLK 29 C1 2D1 42 1D To Eight Other Channels 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 15 2Q1 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 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 7 V Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V Current into any output in the low state, IO: SN54ABT16823 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74ABT16823 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA Package thermal impedance, θJA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74°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 and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51. recommended operating conditions (see Note 3) SN54ABT16823 MAX MIN MAX 4.5 5.5 4.5 5.5 VCC VIH Supply voltage VIL VI Low-level input voltage IOH IOL High-level output current ∆t /∆v Input transition rise or fall rate ∆t/∆VCC TA Power-up ramp rate 200 Operating free-air temperature –55 High-level input voltage SN74ABT16823 MIN 2 2 0.8 Input voltage 0 Low-level output current Outputs enabled VCC –24 V V 0.8 0 UNIT VCC –32 V V mA 48 64 mA 10 10 ns/V µs/V 200 125 –40 85 °C NOTE 3: Unused inputs must be held high or low to prevent them from floating. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH TEST CONDITIONS VCC = 4.5 V, VCC = 4.5 V, II = –18 mA IOH = –3 mA VCC = 5 V, VCC = 4 4.5 5V VOL VCC = 4 4.5 5V MIN TA = 25°C TYP† MAX SN54ABT16823 MIN –1.2 MAX SN74ABT16823 MIN –1.2 –1.2 2.5 2.5 2.5 IOH = –3 mA IOH = –24 mA 3 3 3 2 2 IOH = –32 mA IOL = 48 mA 2* IOL = 64 mA II IOZPU 0.55 0.55* 0.55 V mV ±1 ±1 ±1 µA VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V, OE = X ±50 ±50 ±50 µA IOZPD VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V, OE = X ±50 ±50 ±50 µA IOZH VCC = 2.1 V to 5.5 V, VO = 2.7 V, OE ≥ 2 V 10** 50 10 µA IOZL VCC = 2.1 V to 5.5 V, VO = 0.5 V, OE ≥ 2 V –10** –50 –10 µA ±100 µA Ioff ICEX IO‡ Outputs high VCC = 0, VCC = 5.5 V, VI or VO ≤ 4.5 V VO = 5.5 V VCC = 5.5 V, VO = 2.5 V ±100 50 –50 –100 Outputs high ICC Outputs low Outputs disabled 5 5 V, V IO = 0, 0 VCC = 5.5 VI = VCC or GND ∆ICC§ VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND Ci VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V Co –200 50 –50 –200 –50 POST OFFICE BOX 655303 50 µA –200 mA 0.5 0.5 80 80 80 0.5 0.5 0.5 1.5 1.5 1.5 0.5 mA mA 3.5 pF 7.5 pF * On products compliant to MIL-PRF-38535, this parameter does not apply. ** These limits apply only to the SN74ABT16823. † All typical values are at VCC = 5 V. ‡ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. § This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND. 6 V V 100 VCC = 0 to 5.5 V, VI = VCC or GND UNIT 2 0.55 Vhys MAX • DALLAS, TEXAS 75265 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) VCC = 5 V, TA = 25°C fclock Clock frequency tw Pulse duration tsu th Setup time before CLK↑ ↑ Hold time after CLK↑ SN54ABT16823 SN74ABT16823 MIN MAX MIN MAX MIN MAX 0 150 0 150 0 150 CLR low 3.3 3.3 3.3 CLK high or low 3.3 3.3 3.3 CLR inactive 1.6 2 1.6 Data 1.7 1.7 1.7 CLKEN low 2.8 2.8 2.8 Data 1.2 1.2 1.2 CLKEN low 0.6 0.6 0.6 UNIT MHz ns ns ns switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) SN54ABT16823 PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN fmax tPLH tPHL tPHL tPZH tPZL tPHZ tPLZ TYP MIN Q CLR Q OE Q OE Q UNIT MAX 150 CLK MAX 150 MHz 1.6 3.9 5.5 1.6 7.7 2.1 3.9 5.4 2.1 6.4 1.9 4.1 5.3 1.9 6.3 1 3.1 4.2 1 5.1 1.5 3.5 4.6 1.5 5.7 2.2 4.3 6 2.2 6.8 1.6 4.3 6.4 1.6 9.9 ns ns ns ns switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) SN74ABT16823 PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN fmax tPLH tPHL tPHL MIN TYP MAX 1.6 3.9 5.5 1.6 6.8 2.1 3.9 5.4 2.1 6 1.9 4.1 5.3 1.9 6.1 1 3.1 4.2 1 4.9 1.5 3.5 4.6 1.5 5.5 2.2 4.3 5.6 2.2 6.1 1.6 4.3 6.4 1.6 8.7 150 CLK Q CLR Q tPZH tPZL OE Q tPHZ tPLZ OE Q POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MAX 150 UNIT MHz ns ns ns ns 7 SN54ABT16823, SN74ABT16823 18-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS217C – JUNE 1992 – REVISED JANUARY 1997 PARAMETER MEASUREMENT INFORMATION 7V S1 500 Ω From Output Under Test Open GND CL = 50 pF (see Note A) 500 Ω TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 7V Open LOAD CIRCUIT 3V Timing Input 1.5 V 0V tw tsu 3V Input 1.5 V 1.5 V th 3V Data Input 1.5 V 1.5 V 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V 1.5 V Input 1.5 V 0V VOH 1.5 V Output 1.5 V VOL VOH Output 1.5 V 1.5 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS 1.5 V 0V tPLZ Output Waveform 1 S1 at 7 V (see Note B) tPLH tPHL 1.5 V tPZL tPHL tPLH 3V Output Control Output Waveform 2 S1 at Open (see Note B) 1.5 V tPZH 3.5 V VOL + 0.3 V VOL tPHZ 1.5 V VOH – 0.3 V VOH ≈0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING 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 ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. D. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuit and Voltage Waveforms 8 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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