INTEGRATED CIRCUITS 74ALVT162823 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) Product specification IC24 Data Handbook 1998 Aug 27 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) FEATURES 74ALVT162823 DESCRIPTION • Two sets of high speed parallel registers with positive The 74ALVT162823 18-bit bus interface register is designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider data/address paths of buses carrying parity. edge-triggered D-type flip-flops • 5V I/O Compatible • Ideal where high speed, light loading, or increased fan-in are The 74ALVT162823 has two 9-bit wide buffered registers with Clock Enable (nCE) and Master Reset (nMR) which are ideal for parity bus interfacing in high microprogrammed systems. required with MOS microprocessors • Live insertion/extraction permitted • Power-up 3-State • Power-up Reset • Output capability: +12mA/–12mA • Latch-up protection exceeds 500mA per Jedec Std 17 • ESD protection exceeds 2000 V per MIL STD 883 Method 3015 The registers are fully edge-triggered. The state of each D input, one set-up time before the Low-to-High clock transition is transferred to the corresponding flip-flop’s Q output. The 74ALVT162823 is designed with 30Ω series resistance in both the pull-up and pull-down output structures. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus receivers/transmitters. and 200 V per Machine Model • Bus hold data inputs eliminate the need for external pull-up resistors to hold unused inputs • Outputs include series resistance of 30Ω making external termination resistors unnecessary QUICK REFERENCE DATA SYMBOL TYPICAL CONDITIONS Tamb = 25°C; GND = 0V PARAMETER UNIT 2.5V 3.3V 4.2 3.4 3.0 2.8 ns tPLH tPHL Propagation delay nCP to nQx CL = 50pF CIN Input capacitance VI = 0V or VCC 3 3 pF COUT Output capacitance VI/O = 0V or 3.0V 9 9 pF ICCZ Total supply current Outputs disabled 40 70 µA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 56-Pin Plastic SSOP Type III –40°C to +85°C 74ALVT162823 DL AV162823 DL SOT371–1 56-Pin Plastic TSSOP Type II –40°C to +85°C 74ALVT162823 DGG AV162823 DGG SOT364–1 PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 2, 27 1OE, 2OE Output enable input (active-Low) 54, 52, 51, 49, 48, 47, 45, 44, 43 42, 41, 40, 38, 37, 36, 34, 33, 31 1D0-1D8 2D0-2D8 Data inputs 3, 5, 6, 8, 9, 10, 12, 13, 14 15, 16, 17, 19, 20, 21, 23, 24, 26 1Q0-1Q8 2Q0-2Q8 Data outputs 56, 29 1CP, 2CP Clock pulse input (active rising edge) 55, 30 1CE, 2CE Clock enable input (active-Low) Master reset input (active-Low) 1, 28 1MR, 2MR 4, 11, 18, 25, 32, 39, 46, 53 GND Ground (0V) 7, 22, 35, 50 VCC Positive supply voltage 1998 Aug 27 2 853-2114 19927 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) PIN CONFIGURATION 74ALVT162823 LOGIC SYMBOL (IEEE/IEC) 1MR 1 56 1CP 1OE 2 55 1CE 1Q0 3 54 1D0 GND 4 53 GND 1Q1 5 52 1Q2 6 VCC 7 1Q3 1OE 2 EN1 1MR 1 R2 1CE 55 G3 1CP 56 1D1 2OE 27 EN5 51 1D2 2MR 28 R6 50 VCC 2CE 30 G7 8 49 1D3 2CP 29 1Q4 9 48 1D4 3 10 47 1D5 1D0 54 1Q5 1Q0 1D1 52 5 1Q1 1D2 51 6 1Q2 1D3 49 8 1Q3 1D4 48 9 1Q4 1D5 47 10 1Q5 1D6 45 12 1Q6 1D7 44 13 1Q7 1D8 43 14 1Q8 15 2Q0 GND 1Q6 1Q7 1Q8 2Q0 2Q1 2Q2 GND 11 GND 46 12 1D6 45 13 1D7 44 14 1D8 43 15 2D0 42 16 2D1 41 17 2D2 40 18 GND 39 19 2D3 38 2Q4 20 37 2D4 2Q5 21 36 2D5 VCC 22 35 VCC 2Q6 23 34 2D6 2Q7 24 33 2D7 GND 25 32 GND 2Q8 26 31 2D8 2OE 27 30 2CE 2MR 28 29 2CP 7C8 1, 2 ∇ 4D 42 2D0 2Q3 3C4 5, 6 ∇ 8D 2D1 41 16 2Q1 2D2 40 17 2Q2 2D3 38 19 2Q3 2D4 37 20 2Q4 2D5 36 21 2Q5 2D6 34 23 2Q6 2D7 33 24 2Q7 2D8 31 25 2Q8 SH00015 SH00014 LOGIC DIAGRAM nCE nD0 nD1 nD2 nD3 nD4 nD5 nD6 nD7 nD8 nCP nD R CP nD R Q CP nD R Q CP Q CP nD nD R R Q CP nD R Q CP nD R Q CP nD R Q CP nD R Q CP Q nMR nOE nQ0 nQ1 nQ2 nQ3 nQ4 nQ5 nQ6 nQ7 nQ8 n = 1 or 2 SH00016 1998 Aug 27 3 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 FUNCTION TABLE INPUTS OUTPUTS nOE nMR nCE nCP nDx nQ0 – nQ8 L L X X X L L H L ↑ h H L H L ↑ l L L H H ↑ X NC H = h = L = l = NC= X = Z = ↑ = ↑ = OPERATING MODE Clear Load and read data Hold H X X X X Z High voltage level High voltage level one set-up time prior to the Low-to-High clock transition Low voltage level Low voltage level one set-up time prior to the Low-to-High clock transition No change Don’t care High impedance “off” state Low to High clock transition Not a Low-to-High clock transition SCHEMATIC OF EACH OUTPUT High impedance BUS HOLD CIRCUIT VCC VCC VCC Data Input 27Ω To internal circuit OUTPUT 27Ω SW00007 SW00044 ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL VCC PARAMETER IIK DC input diode current VI DC input voltage3 IOK DC output diode current VOUT IOUT O CONDITIONS DC supply voltage DC output voltage3 DC output current VI < 0 RATING UNIT -0.5 to +4.6 V -50 mA -0.5 to +7.0 V VO < 0 -50 mA Output in Off or High state -0.5 to +7.0 V Output in Low state 128 Output in High state -64 mA Tstg Storage temperature range -65 to +150 °C NOTES: 1. Stresses beyond those listed 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. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. 3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. 1998 Aug 27 4 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 RECOMMENDED OPERATING CONDITIONS SYMBOL VCC 2.5V RANGE LIMITS PARAMETER DC supply voltage 3.3V RANGE LIMITS UNIT MIN MAX MIN MAX 2.3 2.7 3.0 3.6 V 0 5.5 0 5.5 V VI Input voltage VIH High-level input voltage VIL Input voltage 0.7 0.8 V IOH High-level output current –8 –12 mA IOL Low-level output current 12 12 mA 10 ns/V +85 °C 1.7 ∆t/∆v Input transition rise or fall rate; Outputs enabled Tamb Operating free-air temperature range 2.0 V 10 –40 +85 –40 DC ELECTRICAL CHARACTERISTICS (3.3V 0.3V RANGE) LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40°C to +85°C MIN VIK Input clamp voltage VCC = 3.0V; IIK = –18mA VOH High-level output voltage VCC = 3.0V; IOH = –12mA VOL output Low-level out ut voltage 0V; IOL = 12mA VCC = 3 3.0V; VRST Power-up output low voltage6 VCC = 0 or 3.6V; VI = 5.5V Input leakage current IHOLD Off current Bus Hold current D inputs7 –0.85 –1.2 2.3 05 0.5 Control pins ins VCC = 3.6V; VI = 5.5V Data pins4 VCC = 3.6V; VI = VCC IOFF MAX VCC = 3.6V; IO = 1mA; VI = VCC or GND VCC = 3.6V; VI = VCC or GND II 2.0 TYP1 V V 08 0.8 V 0.55 V 0.1 ±1 µA 0.1 10 0.1 10 0.5 1 VCC = 3.6V; VI = 0 0.1 -5 VCC = 0V; VI or VO = 0 to 4.5V 0.1 ±100 VCC = 3V; VI = 0.8V UNIT 75 130 VCC = 3V; VI = 2.0V –75 –140 VCC = 0V to 3.6V; VCC = 3.6V ±500 µA µA µA Current into an output in the High state when VO > VCC VO = 5.5V; VCC = 3.0V 10 125 µA Power up/down 3-State output current3 VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC OE/OE = Don’t care 1 ±100 µA IOZH 3-State output High current VCC = 3.6V; VO = 3.0V; VI = VIL or VIH 0.5 5 µA IOZL 3-State output Low current VCC = 3.6V; VO = 0.5V; VI = VIL or VIH 0.5 –5 µA VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0 0.05 0.1 VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0 3.9 5.5 VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05 0.06 0.1 VCC = 3V to 3.6V; One input at VCC–0.6V, Other inputs at VCC or GND 0.04 0.4 IEX IPU/PD ICCH ICCL Quiescent supply current ICCZ ∆ICC Additional supply current per input pin2 mA mA NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. 2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND 3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.3V a transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only. 4. Unused pins at VCC or GND. 5. ICCZ is measured with outputs pulled up to VCC or pulled down to ground. 6. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power. 7. This is the bus hold overdrive current required to force the input to the opposite logic state. 1998 Aug 27 5 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 AC CHARACTERISTICS (3.3V 0.3V RANGE) GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER Tamb = –40°C to +85°C VCC = +3.3V ±0.3V WAVEFORM MIN TYP UNIT MAX fMAX Maximum clock frequency 1 MHz tPLH tPHL Propagation delay nCP to nQx 1 1.8 1.8 3.0 2.8 4.7 4.0 ns tPHL Propagation delay nMR to nQx 2 1.8 2.8 4.0 ns tPZH tPZL Output enable time to High and Low level 4 5 1.9 1.6 3.5 2.6 5.7 3.8 ns tPHZ tPLZ Output disable time from High and Low level 4 5 1.9 1.5 3.4 2.5 5.2 3.8 ns AC SETUP REQUIREMENTS (3.3V 0.3V RANGE) GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER WAVEFORM Tamb = -40 to +85oC VCC = +3.3V ±0.3V MIN TYP UNIT ts(H) ts(L) Setup time, High or Low nDx to nCP 3 1.0 1.2 0.6 0.7 ns th(H) th(L) Hold time, High or Low nDx to nCP 3 0.1 0.1 –0.8 –0.6 ns tw(H) tw(L) nCP pulse width High or Low 1 1.5 2.5 0.7 1.7 ns ts(H) ts(L) Setup time, High or Low nCE to nCP 3 1.0 0.5 0.2 –0.5 ns th(H) th(L) Hold time, High or Low nCE to nCP 3 1.0 1.0 0.5 –0.1 ns tw(L) nMR pulse width, Low 2 2.0 1.5 ns trec Recovery time nMR to nCP 2 2.0 1.4 ns 1998 Aug 27 6 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 DC ELECTRICAL CHARACTERISTICS (2.5V 0.2V RANGE) LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40°C to +85°C MIN TYP1 MAX –0.85 –1.2 UNIT VIK Input clamp voltage VCC = 2.3V; IIK = –18mA VOH output High-level out ut voltage 3V; IOH = –8mA VCC = 2 2.3V; VOL Low-level output voltage VCC = 2.3V; IOL = 12mA 0.3 0.5 VCC = 2.7V; IO = 1mA; VI = VCC or GND 0.2 0.55 V VCC = 2.7V; VI = GND 0.1 ±1 µA 0.1 10 0.1 10 0.5 1 VRST Power-up output low voltage7 Control pins ins VCC = 2.7V; VI = 5.5V II Input leakage current 17 1.7 VCC = 3.6V; VI = 5.5V Data pins4 VCC = 3.6V; VI = VCC 25 2.5 V V V µA VCC = 3.6V; VI = 0 0.1 -5 Off current VCC = 0V; VI or VO = 0 to 4.5V 0.1 ±100 Bus Hold current VCC = 2.5V; VI = 0.7V 100 µA D inputs6 VCC = 2.5V; VI = 1.7V –70 µA Current into an output in the High state when VO > VCC VO = 5.5V; VCC = 2.5V 10 125 µA Power up/down 3-State output current3 VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC; OE/OE = Don’t care 1 ±100 µA IOZH 3-State output High current VCC = 2.7V; VO = 2.3V; VI = VIL or VIH 0.5 5 µA IOZL 3-State output Low current VCC = 2.7V; VO = 0.5V; VI = VIL or VIH 0.5 –5 µA VCC = 2.7V; Outputs High, VI = GND or VCC, IO = 0 0.04 0.1 VCC = 2.7V; Outputs Low, VI = GND or VCC, IO = 0 2.7 4.5 VCC = 2.7V; Outputs Disabled; VI = GND or VCC, IO = 05 0.04 0.1 VCC = 2.3V to 2.7V; One input at VCC–0.6V, Other inputs at VCC or GND 0.04 0.4 IOFF IHOLD IEX IPU/PD ICCH ICCL Quiescent supply current ICCZ ∆ICC Additional supply current per input pin2 µA mA mA NOTES: 1. All typical values are at VCC = 2.5V and Tamb = 25°C. 2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND 3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 2.5V ± 0.2V a transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only. 4. Unused pins at VCC or GND. 5. ICCZ is measured with outputs pulled up to VCC or pulled down to ground. 6. Not guaranteed. 7. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power. 1998 Aug 27 7 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 AC CHARACTERISTICS (2.5V 0.2V RANGE) GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER Tamb = –40°C to +85°C VCC = +2.5V ±0.2V WAVEFORM MIN TYP UNIT MAX fMAX Maximum clock frequency 1 MHz tPLH tPHL Propagation delay nCP to nQx 1 2.5 2.0 4.2 3.4 6.3 5.0 ns tPHL Propagation delay nMR to nQx 2 2.0 3.4 4.6 ns tPZH tPZL Output enable time to High and Low level 4 5 3.0 2.0 4.8 3.2 7.6 5.2 ns tPHZ tPLZ Output disable time from High and Low level 4 5 2.5 2.0 4.4 3.3 6.7 5.2 ns AC SETUP REQUIREMENTS (2.5V 0.2V RANGE) GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER WAVEFORM Tamb = -40 to +85oC VCC = +2.5V ±0.2V MIN TYP UNIT ts(H) ts(L) Setup time, High or Low nDx to nCP 3 1.0 2.0 0.6 1.4 ns th(H) th(L) Hold time, High or Low nDx to nCP 3 0.1 0.1 –1.5 –0.6 ns tw(H) tw(L) nCP pulse width High or Low 1 2.0 3.0 0.8 2.1 ns ts(H) ts(L) Setup time, High or Low nCE to nCP 3 1.0 0.5 0.2 –0.2 ns th(H) th(L) Hold time, High or Low nCE to nCP 3 1.0 1.0 0.2 –0.1 ns tw(L) nMR pulse width, Low 2 2.5 1.6 ns trec Recovery time nMR to nCP 2 2.3 1.7 ns 1998 Aug 27 8 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 AC WAVEFORMS For all waveforms, VM = 1.5V or VCC/2 whichever is less The shaded areas indicate when the input is permitted to change for predictable output performance. 1/fMAX nCP VM VM VM VM 0V tPZH 0V tw 3.0V or VCC whichever is less nOE 3.0V or VCC whichever is less tPLH tPHZ VOH VOH–0.3V tPHL VOH nQn VM VM nQx VM 0V 0V SH00020 SH00017 Waveform 4. 3-State Output Enable Time to High Level and Output Disable Time from High Level Waveform 1. Propagation Delay, Clock Input to Output, Clock Pulse Width, and Maximum Clock Frequency VM nMR 3.0V or VCC whichever is less 3.0V or VCC whichever is less VM nOE tREC tPZL 3.0V or VCC whichever is less VM nCP nQx 0V tPHL SH00021 Waveform 2. Master Reset Pulse WIdth, Master Reset to Output Delay and Master Reset to Clock Recovery Time VM VM 3.0V or VCC whichever is less VM 0V nCP th(H) VM ts(L) th(L) VM 3.0V or VCC whichever is less 0V SH00019 Waveform 3. Data Setup and Hold Times 1998 Aug 27 VOL +0.3V Waveform 5. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level 0V SH00018 ts(H) VM 3.0V or VCC whichever is less VOL VM VM tPLZ VOH nQn nDx, nCE VM 0V 0V tw VM 9 Philips Semiconductors Product specification 2.5V/3.3V 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 TEST CIRCUIT AND WAVEFORM 6V or VCC x 2 VCC VIN VOUT PULSE GENERATOR RL GND tW 90% OPEN VM NEGATIVE PULSE 10% 0V tTHL (tF) CL tTLH (tR) tTLH (tR) RL tTHL (tF) 90% POSITIVE PULSE Test Circuit for 3-State Outputs VM GND tPLZ/tPZL 6V or VCC x 2 tPLH/tPHL open 10% 0V VM = 1.5V or VCC / 2, whichever is less Input Pulse Definition INPUT PULSE REQUIREMENTS DEFINITIONS FAMILY RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. VM tW SWITCH tPHZ/tPZH AMP (V) 90% 10% SWITCH POSITION TEST AMP (V) VM 10% D.U.T. RT 90% 74ALVT16 RT = Termination resistance should be equal to ZOUT of pulse generators. Amplitude Rep. Rate tW tR 3.0V or VCC whichever is less ≤10MHz 500ns ≤2.5ns tF ≤2.5ns SW00162 1998 Aug 27 10 Philips Semiconductors Product specification 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mm 1998 Aug 27 11 74ALVT162823 SOT371-1 Philips Semiconductors Product specification 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1mm 1998 Aug 27 12 74ALVT162823 SOT364-1 Philips Semiconductors Product specification 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) NOTES 1998 Aug 27 13 74ALVT162823 Philips Semiconductors Product specification 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State) 74ALVT162823 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. Product specification Production This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. [1] Please consult the most recently issued datasheet before initiating or completing a design. Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 print code Document order number: yyyy mmm dd 14 Date of release: 05-96 9397-750-03577