¡ Semiconductor 1A MSM27V3255CZ 1,048,576-Double Word x 32-Bit or 2,097,152-Word x 16-Bit 4-Double Word x 32-Bit or 8-Word x 16-Bit Page Mode One Time PROM DESCRIPTION The MSM27V3255CZ 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 MSM27V3255CZ operates on a single +3.3V power supply and is TTL compatible. The MSM27V3255CZ provides Page mode which can greatly reduce the read access time. Since the MSM27V3255CZ operates asynchronously , external clocks are not required , making this device easy-to-use. The MSM27V3255CZ 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 package. FEATURES • 1,048,576 double word x 32bit / 2,097,152 word x 16bit electrically switchable configuration • Single +3.3V power supply • Access time 100ns Page mode access time 30ns • Input / Output TTL compatible • Three-state output • Packages 70-pin plastic SSOP (SSOP70-P-500-0.80-K) October 1998 1 MSM27V3255CZ 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 2 MSM27V3255CZ 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 * : Don't Care H L H L VPP * VCC D0 - D15 D16 - D30 DOUT D31/A-1 DOUT Hi-Z L/H Hi-Z 3.3V * H Hi-Z L DIN L 11.0V Hi-Z * L/H Hi-Z 5.0V DOUT Hi-Z L/H 3 MSM27V3255CZ 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 7 V - VI Input voltage Value 0 to 70 relative to VSS - -0.5 to 12.5 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 VIL Condition VCC=3.0V-3.6V 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 4 MSM27V3255CZ 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 - - 80 mA - - µA Parameter Input leakage current 10 Unit µA VCC power supply current (Read) ICCA VPP power supply current IPP 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 - 0.45 V CE=VIL , OE=VIH tc=100ns VPP=VCC V Voltage is relative to Vss AC Characteristics (VCC=3.3V±0.3V, Ta=0 to 70°C) Symbol Condition Min. Max. Unit - 100 - - ns Address access time TC TACC 100 ns Page set up time TPSET 120 - ns 30 - - ns 30 ns Parameter Address access cycle time CE=OE=VIL NOTE(1) - Page access cycle time TPC Page access time TPAC TCE TOE OE=VIL - 100 ns CE=VIL - 30 ns TCHZ OE=VIL CE=VIL 0 0 30 TOHZ TOH CE=OE=VIL 0 ns ns ns CE access time OE access time Output disable time Output hold time - 25 - NOTE(1) TPSET is defined as the end of either CE trailing edge or address transition in random access term until the first page address transition. Measurement conditions Input signal level Input timing reference level Output load Output timing reference level 0V/3V 0.8V/2.0V 100pF 0.8V/2.0V 1.5V 400ohms Output 100pF (including jig capacitance) 5 MSM27V3255CZ TIMING CHART NORMAL MODE READ CYCLE tC ADDRESS tOH tCE CE tCHZ tOE OE tACC tOHZ Valid Data DOUT Hi-Z Hi-Z PAGE MODE READ CYCLE tC A2 - A19 tPSET tPSET tPC tPC A0 - A1 (X32 mode) A-1 - A1 (X16 mode) tOH tCE CE tCHZ tOE OE tACC tPAC tPAC tOHZ DOUT Hi-Z Hi-Z 6 MSM27V3255CZ 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 - - 100 mA Input "H" level VIH - 2.2 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 - 11.0 11.25 V VCC power supply voltage VCC - 10.75 4.75 5.0 5.25 V Voltage is relative to Vss AC Characteristics (Vcc=5.0V±0.25V,Vpp=11.0V±0.25V,Ta=25°C±5°C) Symbol TAS Condition - Min. 2 Typ. - Max. - Unit µs OE set-up time Data set-up time TOES - 2 - TDS - 2 - - µs µs Address hold time TAH - 0 - - µs Data hold time Output float delay from OE TDH - 2 - - TDFP 0 - 130 µs ns VPP voltage set-up time TVS Program pulse width TPW Parameter Address set-up time Data valid from OE TOE Address hold from OE high TAHO - 2 - - µs 23 25 27 µs - - - 150 0 ns µs - PIN Capacitance (VCC=3.3V, Ta=25°C, f=1MHz) Parameter Input Output Symbol Condition Min. Typ. Max. CIN VI=0V VO=0V - 12 COUT - 15 Unit pF 7 MSM27V3255CZ Programming Waveforms ( I ) : Under High Speed Programming Algorithm ( I ) Program and Program Verify Cycle Waveforms A-1 - A19 tAS tAHO tPW CE tOES tDS OE tDFP tDH tOE DIN D0 - D15 DOUT tVS VPP Program Program Verify Programming Waveforms ( II ) : Under High Speed Programming Algorithm ( II ) Consecutive Programming Waveforms A-1 - A19 tAS tAH tPW CE High OE tDS D0 - D15 tDH Din Din tVS VPP 8 MSM27V3255CZ Consecutive Program Verify Waveforms A-1 - A19 High CE tACC tAHO OE tOE tDFP D0 - D15 Dout Dout 11.0V VPP Program and Program Verify Cycle Waveforms A-1 - A19 tAS tAHO tPW CE tOES OE tDFP D0 - D15 tOE tDH tDS Din tDFP Dout 11.0V VPP Program Program Verify 9 MSM27V3255CZ High Speed Programming Algorithm ( I ) Start First Address VCC=5.0V VPP=11.0V X=0 X=10 ? YES NO Program 25µs Increment Address X=X+1 NG Verify (One Byte) PASS NO Last Address ? YES VCC=3.6V VPP=3.6V Compare All NG PASS VCC=3.0V VPP=3.0V Compare All NG Device Failed PASS Device Passed 10 MSM27V3255CZ High Speed Programming Algorithm ( II ) Start First Address VCC=5.0V VPP=11.0V Program 25µs Increment Address NO Last Address ? YES First Address X=0 Verify (One Byte) NG X=X+1 PASS NO Increment Address YES Last Address ? X=10 ? YES NO VCC=3.6V VPP=3.6V Compare All Program 25µs NG PASS VCC=3.0V VPP=3.0V Compare All NG PASS Device Passed Device Failed 11 Semiconductor NOTICE The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-todate. The outline of action and examples for application circuits described herein have been chosen as an explanation for the standard action and performance of the product. When planning to use the product, please ensure that the external conditions are reflected in the actual circuit, assembly, and program designs. When designing your product, please use our product below the specified maximum ratings and within the specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating temperature. Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified operating range. Neither indemnity against nor license of a third party’s industrial and intellectual property right, etc. is granted by us in connection with the use of the product and/or the information and drawings contained herein. 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