Semiconductor MSM531622F 1,048,576-Word x 16-Bit or 2,097,152-Word x 8-Bit MASKROM DESCRIPTION The OKI MSM531622F is a high-speed CMOS Mask ROM that can electrically switch between 1,048,576-word x 16-bit or 2,097,152-word x 8-bit configurations. The MSM531602E Operates on a single 5.0V power supply and is TTL compatible. The chip's asynchronous I/O requires no external clock assuring easy operation. A power-down mode provides low power dissipation when the chip is not selected. The CE and OE pins are provided as control signals that permit three-stated output allowing easy memory expansion on a system bus.The MSM531622F is suited for use as large capacity fixed memory for microcomputers and data terminals. FEATURES Single 5.0V power supply 1,048,576-words x 16-bit / 2,097,152-words x 8-bit Access time 90ns MAX Input/Output TTL compatible Tri-State output configurations Internal powerdown function Packages: (MSM531602F-xxRS) 42-PIN PLASTIC DIP (DIP42-P-600-2.45) 44-PIN PLASTIC SOP (SOP44-P-600-1.27-K) (MSM531602F-xxGS-K) 48-PIN PLASTIC TSOP (TSOP48-P-550-0.80-K) (MSM531602F-xxTS-K) 16MEPROM (42-PIN) pin compatible 1 MSM531622F PIN CONFIGURATION NC 1 NC 2 48 NC 47 NC NC 1 44 NC NC 3 46 NC A18 4 45 A19 A18 1 42 A19 A18 2 43 A19 A17 2 41 A8 A17 3 42 A8 A17 5 44 A8 A7 3 40 A9 A7 4 41 A9 A7 6 43 A9 A6 4 39 A10 A6 5 40 A10 A6 7 42 A10 A5 5 38 A11 A5 6 39 A11 A5 8 41 A11 A4 6 37 A12 A4 7 38 A12 A4 9 40 A12 A3 7 36 A13 A3 8 35 A14 A2 9 37 A13 36 A14 A3 10 A2 11 39 A13 A2 8 A1 9 A0 10 34 A15 33 A16 A1 10 A0 11 35 A15 A1 12 34 A16 A0 13 37 A15 36 A16 CE 11 32 BYTE CE 12 33 BYTE CE 14 35 BYTE VSS 13 32 VSS 15 38 A14 VSS 12 31 VSS OE 13 30 D15/A-1 OE 14 D0 14 29 D7 D0 15 30 D7 D0 17 32 D7 D8 15 28 D14 D8 16 29 D14 D8 18 31 D14 D1 16 27 D6 D1 17 26 D13 D9 18 28 D6 27 D13 D1 19 D9 20 30 D6 D9 17 D2 18 D10 19 25 D5 24 D12 D2 19 D10 20 26 D5 D2 21 25 D12 D10 22 28 D5 27 D12 D3 20 23 D4 D3 21 24 D4 D3 23 26 D4 D11 21 22 VCC D11 22 23 VCC D11 24 25 VCC 42 PIN DIP VSS 31 D15/A-1 OE 16 44 PIN SOP Pin Name D15/A-1 29 D13 Function Data output / address input A0 to A19 Address input Data output CE Chip enable OE Output enable NC 33 D15/A-1 48 PIN TSOP D0 to D15 BYTE VCC, VSS 34 VSS Mode switch Power supply No Connect 2 MSM531622F BLOCK DIAGRAM VCC VSS A-1 BYTE Output Switching Between 8 and 16 bits CE CE A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 OE OE Control Memory Cell Matrix 1,048,576-Word x 16 or 2,097,152 x 8 X Decoder Address Buffer Multiplexer Y Decoder Output Buffer D0 D2 D1 D4 D3 D6 D5 D8 D7 D10 D12 D14 D9 D11 D13 D15 FUNCTION TABLE 3 CE H OE X BYTE X A-1/D15 D0 to D7 D8 to D15 X Hi-Z Hi-Z L H X X Hi-Z Hi-Z L L H Input Inhibited (D15) D0 to D7 D8 to D15 L L L L D0 to D7 Hi-Z L L L H D8 to D15 Hi-Z DOUT Mode LSB MSB Hi-Z — — 16 bit A0 A19 8 bit A-1 A19 MSM531622F ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Symbol VCC Conditions Limits Unit V Input Voltage VI to VSS –0.3 to 7 –0.3 to VCC + 0.5 Output Voltage VO –0.3 to VCC + 0.5 V Power Dissipation PD Operating Temperature Topr — Storage Temperature Tstg — Parameter Power Supply Voltage Per Package Topr = 25°C V 1.0 W 0 to 70 °C –55 to 150 °C Recommended Operating Conditions Parameter Symbol Conditions VCC — VSS — "H" Input Voltage VIH — "L" Input Voltage VIL Topr Power Supply Voltage Operating Temperature Limits Min. Unit Typ. Max. 4.75 5.0 5.25 V 0.0 0.0 V 5.0 — 2.2 –0.3 0.0 VCC + 0.5 0.8 V — 0 70 °C 0.0 — V DC Characteristics (VCC = 5V±5%, Ta = 0 to 70°C) Parameter Limits Symbol Conditions "H" Output Voltage VOH IOH = –400uA "L" Output Voltage VOL IOH = 2.1mA 2.4 — ILI VI = 0 to VCC –10 Output Leakage Current ILO VO = 0 to VCC CE = VIH MIN –10 Power Supply Current (Operating) ICC CE = VIL,OE = VIH,tC = 80ns Power Supply Current (Standby) ICCS1 Input Leakage Current ICCS Min. Unit Typ. — Max. — — 0.4 — 10 V µA — 10 µA — — 70 mA CE = VCC–0.2V — — 50 CE = VIH MIN — — 500 µA µA V 4 MSM531622F AC CHARACTERISTICS Timing conditions Parameter Conditions Input Signal Level VIH=3.0V, VIL=0.0V tr=tf=5ns Transtion Time Timing Reference Level Input Voltage=1.5V Output Voltage=0.8V&2.0V Load Condition CL=50pF+1TTL Read Cycle (Ta = 0 to 70°C) Parameter Symbol Conditions Limits Min. Typ. — Max. — — Unit tC — Address Access time tACC — 80 — 80 ns CE Access time tCE — — — 80 ns OE Access time tOE — — — 40 ns CE Output Disable time tCHZ 0 ns OE Output Disable time Output Hold time 0 — — 35 tOHZ — — — 0 — 30 — ns tOH Cycle time 5 ns ns MSM531622F Read Cycle (Note 1) tC Address tACC tOH OE tOHZ tOE (Note 3) DOUT Read Cycle (Note 2) tC CE tCHZ tCE (Note 3) OE tOE DOUT Note) 1. CE is low level. 2. Address is fixed before or at the same time when CE level falls. 3. tCHZ & tOHZ indicate the time until floating. They are not determined by the output level. I/O CAPACITANCE Parameter Input Capacitance Output Capacitance Symbol Conditions Rated Value CI VI=0V Min. — CO VO=0V — Unit Typ. — Max. 8 pF — 10 pF 6 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. 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