ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Product Features Product Description • 4.5V to 5.5V on A-port and 2.7V to 5.5V on B-port • Latch-up performance exceeds 200mA Per JESD78 • ESD protection exceeds JESD 22 - 2000V Human-Body Model (A114-B) - 200V Machine Model (A115-A) • Industrial Temperature: –40°C to +85°C • Available Packages: - 24-pin 173-mil wide plastic TSSOP (L) - 24-pin 150-mil wide plastic QSOP (Q) - 24-pin 300-mil wide plastic SOIC (S) Pericom Semiconductor’s PI74LVC series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading speed. The PI74LVCC4245A is a non-inverting 8-bit Bidirectional Transceiver that uses two separate power supply rails. A-port (VCCA) is set to operate at 5V and B-port (VCCB) is set to operate from 3.3V to 5V. This allows for translation from a 3.3V to a 5Venvironment and vice-versa. This tranceiver is designed for asynchronous two-way communication between data buses. The direction control input pin (DIR) determines the dataflow from the A bus to the B bus or from the B bus to the A bus. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. Logic Block Diagram DIR 2 22 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 A8 10 OE Product Pin Configuration 21 B1 (5V) VCCA 1 24 VCCB (3.3V to 5V) DIR 2 23 NC B3 A1 3 22 OE A2 4 21 B1 B4 A3 5 20 B2 A4 6 19 B3 17 B5 A5 7 18 B4 A6 8 17 B5 16 B6 A7 9 16 B6 A8 10 15 B7 GND 11 14 B8 GND 12 13 GND 20 B2 19 18 15 B7 14 B8 Product Pin Description Truth Table(1) Inputs OE L L H DIR L H X Note: 1. H = High Signal Level X = Don’t Care or Irrelevant Pin Name OE DIR Ax Bx NC GND VCCA,VCCB Outputs Bus B Data to Bus A Bus A Data to Bus B Z (Isolation L = Low Signal Level Z = High Impedance 1 Description 3-State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs No Internal Connect Ground Power P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Supply voltage range, VCCA and VCCB .......................................... –0.5V to +7V Input voltage range, VI(2) : I/O ports (A-port) .................–0.5V to VCCA +0.5V I/O ports (B-port) ................. –0.5V to VCCB+0.5V Control Pins .........................–0.5V to VCCA +0.5V Input clamp current, IIK (VI <0) ...........................................................–50mA Output clamp current, IOK (VO <0) ......................................................–50mA Continous Output Current IO ..............................................................±50mA Continous Current through each VCC or GND pin ...................................±100mA Package thermal impedance, θJA(3): package L ..................................84°C/W package Q..................................98°C/W package S ..................................79°C/W Storage Temperature range, Tstg ........................................... –65°C to 150°C Notes: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. This value is limited to 7V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51. 2 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Recommended Operating Conditions(4) Parameters Descritption VCCA VCCB Min. Nom. Max. VCCA Supply Voltage 4.5 5 5.5 VCCB Supply Voltage 2.7 3.3 5.5 VIHA VIHB VILA VILB VIH VIL High-Level Input Voltage High-Level Input Voltage Low-Level Input Voltage Low-Level Input Voltage VOB < 0.1V or VOB > VCCB –0.1V VOA < 0.1V or VOA > VCCA –0.1V VOB < 0.1V or VOB > VCCB –0.1V VOA < 0.1V or VOA > VCCA –0.1V 4.5V 2.7V 2 3.6V 2 5.5V 5.5V 2 4.5V 2.7V 2 3.6V 2 5.5V 5.5V 3.85 4.5V 2.7V 0.8 3.6V 0.8 5.5V 5.5V 0.8 4.5V 2.7V 0.8 3.6V 0.8 5.5V 5.5V 1.65 2.7V 2 3.6V 2 2 High-Level Input Voltage (Control Pins) VOA < 0.1V or VOA > VCCA –0.1V, or VOB < 0.1V or VOB > VCCB –0.1V 4.5V 5.5V 5.5V Low-Level Input Voltage (Control Pins) VOA < 0.1V or VOA > VCCA –0.1V, or VOB < 0.1V or VOB > VCCB –0.1V 4.5V 2.7V 0.8 3.6V 0.8 5.5V 0.8 5.5V VIA Input Voltage 0 VCCA VIB Input Voltage 0 VCCB VOA Output Voltage 0 VCCA VOB Output Voltage 0 VCCB IOHA High-Level Output Current 4.5V 3V –24 IOHB High-Level Output Current 4.5V 2.7V to 4.5V –24 IOLA Low-Level Output Current 4.5V 3V 24 IOLB Low-Level Output Current 4.5V 2.7V to 4.5V 24 ∆t/∆v Input Transmition Rise or Fall Rate TA Operating Free-Air Temperature –40 Units V mA 10 ns/v 85 °C Note 4. All unused inputs of the device must be held at the associated VCC or GND to ensure proper device operation. 3 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs DC Electrical Characteristics (Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified). Parameters Description Test Conditions VCCA VCCB Min. Typ. VOHA Minimum High Level Output Voltage (Port A) IOH = –100µA 4.5V 3V 4.4 4.5 IOH = –24mA 4.5V 3V 3.76 4.17 IOH = –100µA 4.5V 3V 2.9 3.0 IOH = –12mA 4.5V 2.7V 2.2 2.56 3V 2.46 2.85 2.7V 2.1 2.42 3V 2.25 2.70 4.5V 3.76 4.21 VOHB Minimum High Level Output Voltage (Port B) IOH = –24mA VOLA VOLB Maximum Low Level Output Voltage (Port A) Maximum Low Level Output Voltage (Port B) 4.5V 4.5V 3V IOL = 24mA 4.5V 3V IOL = 100µA 4.5V 3V IOL = 12mA 4.5V 2.7V 0.09 0.44 2.7V 0.18 0.5 3V 0.18 0.44 4.5V 0.18 0.44 IOL = 24mA 4.5V 0.44 0.1 5.5V ±1 5.5V 3.6V ±5 A port = VCCA or GND, IO= 0 5.5V Open 10 B to A, B-port = VCCB or GND, IO (A port) = 0 5.5V 3.6V 10 5.5V 10 Quiescent VCCB Supply Current A to B, A port = VCCA or GND, IO (B port) = 0 5.5V 3.6V 10 5.5V 10 ICC per input (A port) One Input VI = VCCA –2.1V, Other inputs = VCCA or GND, OE = GND and DIR = VCCA 5.5V 5.5V 0.65 1.5 ICC per input (OE) VI = VCCA –2.1V, Other inputs =VCCA or GND, DIR = VCCA or GND 5.5V 5.5V 0.65 1.5 ICC per input (DIR) VI = VCCA –2.1V, Other inputs = VCCA or GND, OE = VCCA or GND 5.5V 3.6V 0.65 1.5 ICC per input (B Port) One Input VI = VCCB –0.6V, Other inputs = VCCB or GND, OE = GND and DIR = GND 5.5V 3.6V 5.5V IOZ(5) Maximum 3-state Output Leakage Current (A or B ports) VI = VIL or VIH, OE = VCCA, VO = VCCA/B or GND ∆ICC(6) 0.19 ±1 VI = VCCA or GND ICCB 0.1 3.6V Maximum Input Leakage Current (Control Inputs) Quiescent VCCA Supply Current Units V IOL = 100µA II ICCA Max. µA mA 50 µA P-0.4 08/11/03 Notes: 5. For I/O ports, the parameter IOZ includes the input leakage current. 6. This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0V or the associated VCC. 4 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Capacitance (TA = 25°C) Parameters Description Test Conditions Typ. CIN Control Input Capacitance VI = VCCA or GND, VCCA = Open, VCCB =Open 2.4 CI/O Input/Output Capacitance (A or B port) VI/O = VCCA/B or GND, VCCA = 5V, VCCB = 3.3V 9.5 CPD Power Dissipation Capacitance (7) Outputs Enabled Units pF 20 VCCA = 5V, VCCB = 3.3V CL = 0pF, f = 10MHz Outputs Disabled 2.2 Notes: 7. CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (ICCD) at no output loading and operating at 50% duty cycle, CPD is related to ICCD dynamic operating current by the expression: ICCD = (CPD)(VCC)(fIN) +(ICC static) AC Electrical Characteristics (Over Operating Range, –40°C to +85°C) Parameters tPHL tPLH tPHL tPLH tPZL tPZH tPZL tPZH tPLZ tPHZ tPLZ tPHZ tSK(O) From (Input) To (Output) A B B A OE A OE B OE A OE B VCCA = 5V ± 0.5V, VCCB = 5V ± 0.5V VCCA = 5V ± 0.5V, VCCB = 2.7V to 3.6V CL = 50pF, RL = 500Ω CL = 50pF, RL = 500Ω Min. Max. Min. Max. 1 6.1 1 6 1 5.8 1 5.8 1 6 1 6.1 1 6.2 1 6.2 1 8 1 8 1 7.1 1 7.1 1 8 1 8 1 8 1 7.8 1 5.2 1 5.2 1 4.9 1 4.9 1 5.2 1 5.4 1 4.9 1 5.4 Output-to-Output Skew(8) 1.5 Units ns 1.5 Note: 8. Skew between any two outputs of the same device, switching in the same direction. Parameter guaranteed by design. 5 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Power- Up Considerations To avoid excessive supply current, bus contention or oscillation during power-up, the following guidelines should be followed: 1. Connect ground first before any supply voltage is applied. 2. Then Power up VCCA, which is the control side of the device. 3. Ramp OE ahead of or with VCCA to help prevent bus contention 4. Ramp DIR with VCCA if DIR high is needed (A bus to B bus). Otherwise keep DIR Low. PARAMETER MEASUREMENT INFORMATION FOR A TO B PORT VCCA =4.5V TO 5.5V and VCCB = 2.7V to 3.6V 6V S1 500W From Output Under Test CL = 50pF Open GND 500W (See Note A) Test S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 6V GND Load Circuit 3V Output Control 1.5V 1.5V 3V Input 1.5V 0V tPLH tPHL VOH 1.5V 1.5V Output 0V tPZL 1.5V VOL Voltage Waveforms Propagation Delay Times tPLZ Output Waveform 1 S1 at 6V (see Note B) t PZH 1.5V Output Waveform 2 S1 at GND (see Note B) 1.5V 3V VOL +0.3V VOL tPHZ VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 1. Load Circuit and 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 impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 6 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs PARAMETER MEASUREMENT INFORMATION FOR B TO A VCCA =4.5V TO 5.5V and VCCB = 2.7V to 3.6V S1 500Ω From Output Under Test CL = 50pF 2X VCCA Open GND 500Ω (See Note A) Test S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2X VCCAGND Load Circuit 3V Output Control 3V Input 1.5V 0V Output tPHL VOH 50% VCCA 50% VCCA VOL Voltage Waveforms Propagation Delay Times 1.5V 0V tPZL 1.5V tPLH 1.5V tPLZ Output Waveform 1 S1 at 2X VCCA (see Note B) t PZH 50% VCCA Output Waveform 2 S1 at GND (see Note B) 50% VCCA VCCA VOL +0.3V VOL tPHZ VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 3. Load Circuit and 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 impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 7 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs PARAMETER MEASUREMENT INFORMATION FOR A TO B VCCA =4.5V TO 5.5V and VCCB = 4.5V to 5.5V S1 500Ω From Output Under Test CL = 50pF 2X VCCB Open GND 500Ω (See Note A) Test S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2X VCCB GND Load Circuit 3V Output Control 3V A port Input 1.5V B Port Output Output Waveform 1 S1 at 2X VCCB (see Note B) 0V tPHL VOH 50% VCCB 50% VCCB VOL Output Waveform 2 S1 at GND (see Note B) Voltage Waveforms Propagation Delay Times 1.5V 0V tPZL 1.5V tPLH 1.5V tPLZ VCCB 50% VCCB tPZH VOL +0.3V VOL tPHZ 50% VCCB VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 2. Load Circuit and 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 impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 8 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs PARAMETER MEASUREMENT INFORMATION FOR B TO A VCCA =4.5V TO 5.5V and VCCB = 4.5V to 5.5V S1 500Ω From Output Under Test CL = 50pF 2X VCCA Open GND 500Ω (See Note A) Test S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2X VCCA GND Load Circuit 3V Output Control B Port Input VCCB 50% VCCB Output Waveform 1 S1 at 2X VCCA (see Note B) 0V tPHL VOH A Port Output 50% VCCA 50% VCCA VOL Output Waveform 2 S1 at GND (see Note B) Voltage Waveforms Propagation Delay Times 1.5V 0V tPZL 50% VCCB tPLH 1.5V tPLZ VCCA 50% VCCA tPZH VOL +0.3V VOL tPHZ 50% VCCA VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 2. Load Circuit and 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 impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 9 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Packaging Mechanical: 24-pin TSSOP (L) 24 .169 .177 4.3 4.5 .004 .008 1 .303 .311 7.7 7.9 0.45 0.75 .047 1.20 Max .007 .012 0.19 0.30 .0256 BSC 0.65 .002 .006 0.09 0.20 .018 .030 .252 BSC 6.4 SEATING PLANE 0.05 0.15 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS Packaging Mechanical: 24-pin QSOP (Q) 24 .008 0.20 MIN. .150 .157 3.81 3.99 Guage Plane .010 0.254 .016 .035 0.41 0.89 Detail A 1 .337 .344 .053 .069 .015 x 45˚ 0.38 1.35 1.75 Detail A SEATING PLANE .025 typical 0.635 0˚-6˚ .041 1.04 REF 8.56 8.74 .033 0.84 .008 .013 0.20 0.33 .008 0.203 .012 0.305 .004 0.101 .010 0.254 .007 .010 .016 .050 0.178 0.254 0.406 1.27 .228 .244 5.79 6.20 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 10 P-0.4 08/11/03 ADVANCE INFORMATION PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Packaging Mechanical: 24-pin SOIC (S) 24 .2914 .2992 7.40 7.60 0.254 x 45˚ 0.737 .010 .029 1 .0926 2.35 .1043 2.65 SEATING PLANE 1.27 0.23 0.32 0.41 .016 1.27 .050 .021 0.533 .031 0.787 .050 BSC .0091 .0125 0-8˚ .5985 15.20 .6141 15.60 .013 .020 0.33 0.51 .394 .419 10.00 10.65 0.10 0.30 .0040 .0118 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information Ordering Code Package Code Package Type PI74LVCC4245AL L 24-pin, 173-mil wide plastic TSSOP PI74LVCC4245AQ Q 24-pin, 150-mil wide plastic QSOP PI74LVCC4245AS S 24-pin, 300-mil wide plastic SOI Notes: 1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/mechanicals.php Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 11 P-0.4 08/11/03