¡ Semiconductor 1A MR27V3255D 1,048,576-Double Word x 32-Bit or 2,097,152-Word x 16-Bit 8-Double Word x 32-Bit or 16-Word x 16-Bit Page Mode One Time PROM DESCRIPTION The MR27V3255D is a 32Mbit electrically Programmable Read-Only Memory with page mode. Its configuration can be electrically switched between 1,048,576 double word x 32bit and 2,097,152 word x 16bit. The MR27V3255D operates on a single +3.3V power supply and is TTL compatible. The MR27V3255D provides Page mode which can greatly reduce the read access time. Since the MR27V3255D operates asynchronously , external clocks are not required , making this device easyto-use. The MR27V3255D is suitable as large-capacity fixed memory for microcomputers and data terminals. It is manufactured using a CMOS double silicon gate technology and is offered in 70-pin SSOP or 70-pin TSOP packages. FEATURES • 1,048,576 double word x 32bit / 2,097,152 word x 16bit electrically switchable configuration • Single +3.3V power supply • Access time 80ns Page mode access time 25ns • Input / Output TTL compatible • Three-state output • Packages 70-pin plastic SSOP (SSOP70-P-500-0.80-K) (Product name : MR27V3255DMB) 70-pin plastic TSOP (TSOP II 70-P-400-0.65-K) (Product name : MR27V3255DTA) November 1999 1/10 MR27V3255D PIN CONFIGURATION (TOP VIEW) A0 1 70 VPP A1 2 69 NC A2 3 68 NC A3 4 67 WORD A4 5 66 OE A5 6 VCC 7 65 CE 64 VSS D0 8 63 D31/A-1 D16 9 62 D15 D1 10 61 D30 D17 11 VSS 12 VCC 13 60 D14 59 VSS 58 VCC D2 14 57 D29 D18 15 56 D13 D3 16 55 D28 D19 17 54 D12 D4 18 53 D27 D20 19 52 D11 D5 20 51 D26 D21 21 VSS 22 VCC 23 50 D10 49 VSS 48 VCC D6 24 47 D25 D22 25 D7 26 46 D9 PIN NAMES FUNCTIONS 45 D24 D31/A-1 Data output / Address input D23 27 VSS 28 44 D8 43 VCC A0 - A19 Address input D0 - D30 Data output A6 29 42 A19 CE Chip enable A7 30 41 A18 Output enable A8 31 40 A17 OE VCC A9 32 39 A16 VSS GND A10 33 38 A15 A11 34 37 A14 WORD VPP A12 35 36 A13 NC Power supply voltage Mode switch Program power supply voltage Non connection 70-pin SSOP , TSOP (II) 2/10 MR27V3255D BLOCK DIAGRAM A-1 OE WORD CE OE PGM Row Decoder CE Memory Matrix 1,048,576X32-Bit or 2,097,152X16-Bit Column Decoder A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 Address Buffer X16/X32 Switch Multiplexer & Page Data Latch Output Buffer D30 D28 D26 D24 D22 D20 D18 D16 D14 D12 D10 D8 D6 D4 D2 D0 D31 D29 D27 D25 D23 D21 D19 D17 D15 D13 D11 D9 D7 D5 D3 D1 In 16-bit output mode, these pins are three-stated and pin D31 functions as the A-1 address pin. FUNCTION TABLE CE OE WORD READ (32-Bit) L L H READ (16-Bit) L L L OUTPUT DISABLE L H MODE STAND-BY H * PROGRAM L H PROGRAM INHIBIT H H PROGRAM VERIFY H L VPP H L * VCC D0 - D15 D16 - D30 DOUT D31/A-1 DOUT Hi-Z L/H Hi-Z 3.3V * H Hi-Z L DIN L 9.75V Hi-Z * L/H Hi-Z 4.0V DOUT Hi-Z L/H * : Don't Care (H or L or Open) 3/10 MR27V3255D ABSOLUTE MAXIMUM RATINGS Symbol Parameter Operating temperature under bias Topr Storage temperature Tstg Condition Output voltage VO Power supply voltage Program power supply voltage VCC VPP Power dissipation per package PD Unit -55 to 125 °C °C -0.5 to VCC + 0.5 V -0.5 to VCC + 0.5 V -0.5 to 5 V - VI Input voltage Value 0 to 70 relative to VSS -0.5 to 11.5 V 1.0 W - RECOMMENDED OPERATING CONDITIONS FOR READ (Ta=0 to 70°C) Parameter Symbol VCC power supply voltage VCC VPP power supply voltage VPP Input "H" level VIH Input "L" level Condition VCC=3.0V-3.6V VIL Min. Typ. Max. 3.0 3.6 Unit V -0.5 - VCC+0.5 V 2.2 - VCC+0.5* V -0.5** - 0.6 V Voltage is relative to Vss * : Vcc+1.5V (Max.) when pulse width of overshoot is less than 10nS. ** : -1.5V (Min.) when pulse width of undershoot is less than 10nS. 4/10 MR27V3255D ELECTRICAL CHARACTERISTICS (Read operation) DC Characteristics (VCC=3.3V±0.3V, Ta=0 to 70°C) Symbol ILI Condition VI=0 to Vcc Min. - Typ. - Max. Output leakage current ILO VO=0 to Vcc - - 10 µA VCC power supply current (Standby) ICS1 CE=VCC 50 CE=VIH - µA ICS2 - 1 mA - - 100 mA µA Parameter Input leakage current 10 Unit µA VCC power supply current (Read) ICCA VPP power supply current IPP VPP=VCC - - Input "H" level VIH - 2.2 - 10 VCC+0.5* Input "L" level VIL - -0.5** - 0.6 V Output "H" level VOH IOH=-400µA - - V Output "L" level VOL IOL=2.1mA 2.4 - 0.4 V CE=VIL , OE=VIH tc=80ns V Voltage is relative to Vss * : Vcc+1.5V (Max.) when pulse width of overshoot is less than 10nS. ** : -1.5V (Min.) when pulse width of undershoot is less than 10nS. AC Characteristics (VCC=3.3V±0.3V, Ta=0 to 70°C) Parameter Symbol Condition Min. Max. Unit - 80 - - ns Address access time TC TACC Page access cycle time TPC Page access time TPAC TCE TOE TCHZ OE=VIL TOHZ TOH Address access cycle time CE access time OE access time Output disable time Output hold time Measurement conditions Input signal level Input timing reference level Output load Output timing reference level CE=OE=VIL - 80 ns - ns 25 ns - 80 ns - 25 ns 25 ns ns ns 25 - OE=VIL CE=VIL CE=VIL 0 0 CE=OE=VIL 0 - 20 - 0V/3V 0.8V/2.0V 100pF 0.8V/2.0V 2.08V 800ohms Output 100pF 5/10 MR27V3255D TIMING CHART NORMAL MODE READ CYCLE tC ADDRESS tOH tCE CE tCHZ tOE OE tOHZ tACC Valid Data DOUT Hi-Z Hi-Z PAGE MODE READ CYCLE tC A3 - A19 tPC tPC A0 - A2 (X32 mode) A-1 - A2 (X16 mode) tOH tCE CE tCHZ tOE OE tACC tPAC tPAC tOHZ DOUT Hi-Z Hi-Z 6/10 MR27V3255D ELECTRICAL CHARACTERISTICS (Programming operation) DC Characteristics (Ta=25°C±5°C) Symbol ILI Parameter Input leakage current VI=VCC+0.5V Condition Min. - Typ. - Max. 10 Unit µA VPP power supply current (Program) IPP2 - 50 mA ICC CE=VIL - - VCC power supply current - - 80 mA Input "H" level VIH - 3.0 VCC+0.5 V Input "L" level VIL - -0.5 - Output "H" level VOH IOH=-400µA 2.4 - 0.8 - V V Output "L" level VOL - - 0.45 V Program voltage VPP IOL=2.1mA - 9.75 10.0 V VCC power supply voltage VCC - 9.5 3.9 4.0 4.1 V Voltage is relative to Vss AC Characteristics (Vcc=4.0V±0.1V,Vpp=9.75V±0.25V,Ta=25°C±5°C) Symbol TAS Condition - OE set-up time TOES - 2 Data set-up time TDS 100 Address hold time TAH - Data hold time Output float delay from OE TDH - TOHZ - TVS TPW - Data valid from OE TOE - Address hold from OE high TAHO - Parameter Address set-up time VPP voltage set-up time Program pulse width Min. 100 Max. Typ. - - Unit ns - µs - 100 - - 0 - 100 2 - - ns ns µs 9 10 11 µs - - 0 100 - ns - 2 ns µs ns Pin Check Function Pin Check Function is to check contact between each device-pin and each socket-lead with EPROM programmer. Setting up address as the following condition call the preprogrammed codes on device outputs. (Vcc=3.3V±0.3V,CE=OE=VIL,WORD=VIL,Ta=25°C±5°C) PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 PA9 PA10 PA11 PA12 PA13 PA14 PA15 PA16 PA17 PA18 PA19 PA20 A-1 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 DATA 0 1 0 1 0 1 0 1 0 1 VH* 1 0 1 0 1 0 1 0 1 0 AAAA 1 0 1 0 1 0 1 0 1 0 VH* 0 1 0 1 0 1 0 1 0 1 Other conditions 5555 FFFF * :VH=8V±0.25V 7/10 MR27V3255D Consecutive Programming Waveforms A-1 - A19 tAS tAH tPW CE High OE tDS tDH D0 - D15 Din Din tVS VPP Consecutive Program Verify Waveforms A-1 - A19 High CE tACC tAHO OE tOE D0 - D15 tOHZ Dout Dout 9.75V VPP 8/10 MR27V3255D Program and Program Verify Cycle Waveforms A-1 - A19 tAS tAHO tPW CE tOES OE tOHZ D0 - D15 tOE tDH tDS Din tOHZ Dout 9.75V VPP PIN Capacitance (VCC=3.3V, Ta=25°C, f=1MHz) Parameter Input Output Symbol CIN Condition VI=0V Min. - Typ. - Max. 8 COUT VO=0V - - 10 Unit pF 9/10 MR27V3255D Programming / Verify Flow Chart Programming Verify Start Start NO Pin Check Bad insertion NO Pin Check Bad insertion OK OK Address = First location Address = First location VCC=3.0V VPP=3.0V VCC=4.0V VPP=9.75V Verify (One Byte) NG PASS Program 10µs VCC=3.6V VPP=3.6V NO Increment Address Last Address ? Verify (One Byte) YES Address = First location NG PASS Device Passed Device Failed X=0 NG X=X+1 Verify (One Byte) PASS NO Increment Address YES Last Address ? X=2? YES NO VCC=3.0V VPP=3.0V Program 10µs NG Verify (One Byte) PASS Device Passed Device Failed 10/10