Revised July 1999 74F189 64-Bit Random Access Memory with 3-STATE Outputs General Description Features The F189 is a high-speed 64-bit RAM organized as a 16word by 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are 3-STATE and are in the high impedance state whenever the Chip Select (CS) input is HIGH. The outputs are active only in the Read mode and the output data is the complement of the stored data. ■ 3-STATE outputs for data bus applications ■ Buffered inputs minimize loading ■ Address decoding on-chip ■ Diode clamped inputs minimize ringing Ordering Code: Order Number Package Number Package Description 74F189SC M16B 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide 74F189SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F189PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Devices also available in Tape and Reel. Specify by appending suffix “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC © 1999 Fairchild Semiconductor Corporation DS009493 www.fairchildsemi.com 74F189 64-Bit Random Access Memory with 3-STATE Outputs April 1988 74F189 Unit Loading/Fan Out Pin Names U.L. Input IIH/IIL Description HIGH/LOW Output IOH/IOL A0–A3 Address Inputs 1.0/1.0 20 µA/−0.6 mA CS Chip Select Input (Active LOW) 1.0/1.0 20 µA/−1.2 mA WE Write Enable Input (Active LOW) 1.0/1.0 20 µA/−0.6 mA D0–D3 Data Inputs 1.0/1.0 20 µA/−0.6 mA O 0–O 3 Inverted Data Outputs 150/40 (33.3) −3.0 mA/24 mA (20 mA) Function Table Inputs Operation CS WE L L L H Write High Impedance H Read Complement of Stored Data X Inhibit High Impedance H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Block Diagram www.fairchildsemi.com Condition of Outputs 2 Recommended Operating Conditions Storage Temperature −65°C to +150°C Ambient Temperature under Bias −55°C to +125°C Free Air Ambient Temperature Junction Temperature under Bias −55°C to +175°C Supply Voltage 0°C to +70°C +4.5V to +5.5V VCC Pin Potential to −0.5V to +7.0V Ground Pin Input Voltage (Note 2) −0.5V to +7.0V Input Current (Note 2) −30 mA to +5.0 mA Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output −0.5V to VCC 3-STATE Output −0.5V to +5.5V Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Note 2: Either voltage limit or current limit is sufficient to protect inputs. Current Applied to Output in LOW State (Max) DC Electrical Characteristics Symbol Parameter Min Typ Max Units VIH Input HIGH Voltage VIL Input LOW Voltage 0.8 V VCD Input Clamp Diode Voltage −1.2 V VOH Output HIGH Voltage VOL 10% VCC 2.5 V 2.4 2.7 IOH = −1 mA 5% VCC 2.7 IOH = −3 mA V Min 10% VCC 0.5 V Min IOL = 24 mA 5.0 µA Max VIN = 2.7V 7.0 µA Max VIN = 7.0V 50 µA Max VOUT = VCC V 0.0 Input HIGH Input HIGH Current Output HIGH Input Leakage 4.75 Test IOD IID = 1.9 µA All Other Pins Grounded Output Leakage 3.75 µA 0.0 −0.6 mA Max Circuit Current IIL IOH = −3 mA 10% VCC Leakage Current VID IIN = −18 mA 5% VCC Breakdown Test ICEX Recognized as a LOW Signal Min IOH = −1 mA Current IBVI Conditions Recognized as a HIGH Signal Output LOW Voltage IIH 2.0 VCC VIOD = 150 mV All Other Pins Grounded Input LOW Current −1.2 VIN = 0.5V (except CS) VIN = 0.5V (CS) IOZH Output Leakage Current 50 µA Max VOUT = 2.7V IOZL Output Leakage Current −50 µA Max VOUT = 0.5V IOS Output Short-Circuit Current −150 mA Max VOUT = 0V IZZ Bus Drainage Test 500 µA 0.0V VOUT = 5.25V ICCZ Power Supply Current 55 mA Max VO = HIGH Z −60 37 3 www.fairchildsemi.com 74F189 Absolute Maximum Ratings(Note 1) 74F189 AC Electrical Characteristics Symbol Parameter TA = +25°C TA = −55°C to +125°C TA = 0°C to +70°C VCC = +5.0V VCC = +5.0V VCC = +5.0V CL = 50 pF CL = 50 pF CL = 50 pF Min Typ Max Min Max Min tPLH Access Time, HIGH or LOW 10.0 18.5 26.0 9.0 32.0 10.0 27.0 tPHL An to On 8.0 13.5 19.0 8.0 23.0 8.0 20.0 Units Max ns tPZH Access Time, HIGH or LOW 3.5 6.0 8.5 3.5 10.5 3.5 9.5 tPZL CS to On 5.0 9.0 13.0 5.0 15.0 5.0 14.0 ns tPHZ Disable Time, HIGH or LOW 2.0 4.0 6.0 2.0 8.0 2.0 7.0 tPLZ CS to On 3.0 5.5 8.0 2.5 10.0 3.0 9.0 ns tPZH Write Recovery Time, 6.5 15.0 28.0 6.5 37.5 6.5 29.0 tPZL HIGH or LOW WE to On 6.5 11.0 15.5 6.5 17.5 6.5 16.5 tPHZ Disable Time, HIGH or LOW 4.0 7.0 10.0 3.5 12.0 4.0 11.0 tPLZ WE to On 5.0 9.0 13.0 5.0 15.0 5.0 14.0 ns ns AC Operating Requirements Symbol Parameter TA = +25°C TA = −55°C to +125°C VCC = +5.0V VCC = +5.0V Min Max Min Max TA = 0°C to +70°C VCC = +5.0V Min tS(H) Setup Time, HIGH or LOW 0 0 tS(L) An to WE 0 0 0 tH(H) Hold Time, HIGH or LOW 2.0 2.0 2.0 Units Max 0 ns tH(L) An to WE 2.0 2.0 2.0 tS(H) Setup Time, HIGH or LOW 10.0 11.0 10.0 tS(L) Dn to WE 10.0 11.0 10.0 tH(H) Hold Time, HIGH or LOW 0 2.0 0 tH(L) Dn to WE 0 2.0 0 tS(L) Setup Time, LOW 0 0 0 6.0 7.5 6.0 6.0 15.0 6.0 ns CS to WE ns tH(L) Hold Time, LOW CS to WE tW(L) WE Pulse Width, LOW www.fairchildsemi.com 4 ns 74F189 Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS013, 0.300” Wide Body Package Number M16B 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-OO1, 0.300” Wide Package Number N16E 5 www.fairchildsemi.com 74F189 64-Bit Random Access Memory with 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Small Outline Package (SOP), EIAJ TYPE ll, 5.3mm Wide Package Number M16D Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. 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