PRELIMINARY MX27C4000A 4M-BIT [512K x8] CMOS OTP ROM FEATURES • • • • • • • Operating current: 40mA • Standby current: 100uA • Package type: 512K x 8 organization Single +5V power supply +12.5V programming voltage Fast access time: 90/100/120/150 ns Totally static operation Completely TTL compatible - 32 pin PDIP 32 pin PLCC 32 pin SOP 32 pin TSOP GENERAL DESCRIPTION programmers may be used. The MX27C4000A supports a intelligent fast programming algorithm which can result in programming time of less than two minutes. The MX27C4000A is a 5V only, 4M-bit, One Time Programmable Read Only Memory. It is organized as 512K words by 8 bits per word, operates from a single +5 volt supply, has a static standby mode, and features fast single address location programming. All programming signals are TTL levels, requiring a single pulse. For programming outside from the system, existing EPROM This One Time Programmable Read Only Memory is packaged in industry standard 32 pin dual-in-line plastic, 32 lead PLCC, 32 lead SOP, 32 lead TSOP packages. PIN CONFIGURATIONS 32 PDIP/SOP A7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 P/N: PM00694 A17 32 A18 1 30 29 A14 A6 A13 A5 A8 A9 A4 A3 9 MX27C4000A 25 A11 A2 OE A1 A10 CE A0 21 20 Q5 Q4 Q3 GND 17 Q7 Q6 13 14 Q2 Q0 32 TSOP A11 A9 A8 A13 A14 A17 A18 VCC VPP A16 A15 A12 A7 A6 A5 A4 VCC 4 VPP 5 A16 A12 VCC A18 A17 A14 A13 A8 A9 A11 OE A10 CE Q7 Q6 Q5 Q4 Q3 Q1 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 A15 32 PLCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MX27C4000A VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 GND PIN DESCRIPTION MX27C4000A 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE Q7 Q6 Q5 Q4 Q3 GND Q2 Q1 Q0 A0 A1 A2 A3 1 SYMBOL PIN NAME A0~A18 Address Input Q0~Q7 Data Input/Output CE Chip Enable Input OE Output Enable Input VPP Program Supply Voltage VCC Power Supply Pin (+5V) GND Ground Pin REV. 1.6, JUL. 19, 2001 MX27C4000A BLOCK DIAGRAM CE OE . CONTROL OUTPUT LOGIC BUFFERS Y-DECODER A0~A18 . . . . Programming of multiple MX27C4000As in parallel with different data is also easily accomplished by using the Program Inhibit Mode. Except for CE and OE, all like inputs of the parallel MX27C4000A may be common. A TTL low-level program pulse applied to an MX27C4000A CE input with VPP = 12.5 ± 0.5 V and CE LOW will program that MX27C4000A. A high-level CE input inhibits the other MX27C4000As from being programmed. Q0~Q7 Y-SELECT . . . . ADDRESS INPUTS PROGRAM INHIBIT MODE X-DECODER . . . . . . . 4M BIT CELL MAXTRIX PROGRAM VERIFY MODE VCC VSS Verification should be performed on the programmed bits to determine that they were correctly programmed. The verification should be performed with OE and CE at VIL, and VPP at its programming voltage. FUNCTIONAL DESCRIPTION THE PROGRAMMING OF THE MX27C4000A AUTO IDENTIFY MODE When the MX27C4000A is delivered, or it is erased, the chip has all 4M bits in the "ONE" or HIGH state. "ZEROs" are loaded into the MX27C4000A through the procedure of programming. The auto identify mode allows the reading out of a binary code from an OTP ROM that will identify its manufacturer and device type. This mode is intended for use by programming equipment for the purpose of automatically matching the device to be programmed with its corresponding programming algorithm. This mode is functional in the 25°C ± 5°C ambient temperature range that is required when programming the MX27C4000A. For programming, the data to be programmed is applied with 8 bits in parallel to the data pins. Vcc must be applied simultaneously or before Vpp, and removed simultaneously or after Vpp. When programming an MXIC OTP ROM, a 01uF capacitor is required across Vpp and ground to suppress spurious voltage transients which may damage the device. To activate this mode, the programming equipment must force 12.0 ± 0.5 V on address line A9 of the device. Two identifier bytes may then be sequenced from the device outputs by toggling address line A0 from VIL to VIH. All other address lines must be held at VIL during auto identify mode. FAST PROGRAMMING The device is set up in the fast programming mode when the programming voltage VPP = 12.75V is applied, with VCC = 6.25 V and OE = VIH (Algorithm is shown in Figure 1). The programming is achieved by applying a single TTL low level 10us pulse to the CE input after addresses and data line are stable. If the data is not verified, an additional pulse is applied for a maximum of 25 pulses. This process is repeated while sequencing through each address of the device. When the programming mode is completed, the data in all address is verified at VCC = VPP = 5V ± 10%. Byte 0 ( A0 = VIL) represents the manufacturer code, and byte 1 (A0 = VIH), the device identifier code. For the MX27C4000A, these two identifier bytes are given in the Mode Select Table. All identifiers for manufacturer and device codes will possess odd parity, with the MSB (Q7) defined as the parity bit. READ MODE The MX27C4000A has two control functions, both of which must be logically satisfied in order to obtain data REV. 1.6, JUL. 19, 2001 P/N: PM00694 2 MX27C4000A at the outputs. Chip Enable (CE) is the power control and should be used for device selection. Output Enable (OE) is the output control and should be used to gate data to the output pins, independent of device selection. Assuming that addresses are stable, address access time (tACC) is equal to the delay from CE to output (tCE). Data is available at the outputs tOE after the falling edge of OE's, assuming that CE has been LOW and addresses have been stable for at least tACC - tOE. 2. Assurance that output bus contention will not occur. It is recommended that CE be decoded and used as the primary device-selecting function, while OE be made a common connection to all devices in the array and connected to the READ line from the system control bus. This assures that all deselected memory devices are in their low-power standby mode and that the output pins are only active when data is desired from a particular memory device. STANDBY MODE SYSTEM CONSIDERATIONS The MX27C4000A has a CMOS standby mode which reduces the maximum VCC current to 100 uA. It is placed in CMOS standby when CE is at VCC ± 0.3 V. The MX27C4000A also has a TTL-standby mode which reduces the maximum VCC current to 1.5 mA. It is placed in TTL-standby when CE is at VIH. When in standby mode, the outputs are in a high-impedance state, independent of the OE input. During the switch between active and standby conditions, transient current peaks are produced on the rising and falling edges of Chip Enable. The magnitude of these transient current peaks is dependent on the output capacitance loading of the device. At a minimum, a 0.1 uF ceramic capacitor (high frequency, low inherent inductance) should be used on each device between VCC and GND to minimize transient effects. In addition, to overcome the voltage drop caused by the inductive effects of the printed circuit board traces on EPROM arrays, a 4.7 uF bulk electrolytic capacitor should be used between VCC and GND for each eight devices. The location of the capacitor should be close to where the power supply is connected to the array. TWO-LINE OUTPUT CONTROL FUNCTION To accommodate multiple memory connections, a twoline control function is provided to allow for: 1. Low memory power dissipation, MODE SELECT TABLE PINS MODE CE OE A0 A9 VPP OUTPUTS Read VIL VIL X X VCC DOUT Output Disable VIL VIH X X VCC High Z Standby (TTL) VIH X X X VCC High Z Standby (CMOS) VCC±0.3V X X X VCC High Z Program VIL VIH X X VPP DIN Program Verify VIH VIL X X VPP DOUT Program Inhibit VIH VIH X X VPP High Z Manufacturer Code(3) VIL VIL VIL VH VCC C2H Device Code(3) VIL VIL VIH VH VCC C0H NOTES: 1. VH = 12.0 V ± 0.5 V 2. X = Either VIH or VIL 3. A1 - A8 = A10 - A18 = VIL(For auto select) 4. See DC Programming Characteristics for VPP voltage during programming. REV. 1.6, JUL. 19, 2001 P/N: PM00694 3 MX27C4000A FIGURE 1. FAST PROGRAMMING FLOWCHART START ADDRESS = FIRST LOCATION VCC = 6.25V VPP = 12.75V X=0 PROGRAM ONE 10us PULSE INCREMENT X INTERACTIVE SECTION YES X = 25? NO FAIL VERIFY BYTE ? PASS NO LAST ADDRESS INCREMENT ADDRESS FAIL YES VCC = VPP = 5.25V VERIFY SECTION VERIFY ALL BYTES ? FAIL DEVICE FAILED PASS DEVICE PASSED REV. 1.6, JUL. 19, 2001 P/N: PM00694 4 MX27C4000A SWITCHING TEST CIRCUITS DEVICE UNDER TEST 1.8K ohm +5V CL 6.2K ohm DIODES = IN3064 OR EQUIVALENT CL = 100 pF including jig capacitance SWITCHING TEST WAVEFORMS 2.0V 2.0V TEST POINTS AC driving levels 0.8V 0.8V OUTPUT INPUT AC TESTING: (1) AC driving levels are 2.4V/0.4V. (2) Input pulse rise and fall times are < 10ns. REV. 1.6, JUL. 19, 2001 P/N: PM00694 5 MX27C4000A NOTICE: Stresses greater than those listed under ABSOLUTE 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 period may affect reliability. ABSOLUTE MAXIMUM RATINGS RATING VALUE Ambient Operating Temperature -40°C to 85°C Storage Temperature -65°C to 125°C Applied Input Voltage -0.5V to 7.0V Applied Output Voltage -0.5V to VCC + 0.5V VCC to Ground Potential -0.5V to 7.0V A9 & VPP -0.5V to 13.5V NOTICE: Specifications contained within the following tables are subject to change. DC/AC OPERATING CONDITION FOR READ OPERATION MX27C4000A Operating Temperature Industrial -90 -10 -12 -15 -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C 5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10% Vcc Power Supply DC CHARACTERISTICS SYMBOL PARAMETER MIN. VOH Output High Voltage 2.4 VOL Output Low Voltage VIH Input High Voltage VIL MAX. UNIT CONDITIONS V IOH = -0.4mA 0.4 V IOL = 2.1mA 2.0 VCC + 0.5 V Input Low Voltage -0.3 0.8 V ILI Input Leakage Current -10 10 uA VIN = 0 to 5.5V ILO Output Leakage Current -10 10 uA VOUT = 0 to 5.5V ICC3 VCC Power-Down Current 100 uA CE = VCC ± 0.3V ICC2 VCC Standby Current 1.5 mA CE = VIH ICC1 VCC Active Current 40 mA CE = VIL, f=5MHz, Iout = 0mA IPP VPP Supply Current Read 10 uA CE = OE = VIL, VPP = 5.5V CAPACITANCE TA = 25oC, f = 1.0 MHz (Sampled only) SYMBOL PARAMETER TYP. MAX. UNIT CONDITIONS CIN Input Capacitance 8 15 pF VIN = 0V COUT Output Capacitance 8 15 pF VOUT = 0V CVPP VPP Capacitance 18 25 pF VPP = 0V REV. 1.6, JUL. 19, 2001 P/N: PM00694 6 MX27C4000A AC CHARACTERISTICS Symbol PARAMETER 27C4000A-90 27C4000A-10 27C4000A-12 27C4000A-15 MIN. MIN. MAX. MIN. MAX. MIN. MAX. MAX. Unit Conditions tACC Address to Output Delay 90 100 120 150 ns CE=OE=VIL tCE Chip Enable to Output Delay 90 100 120 150 ns OE=VIL tOE Output Enable to Output Delay 40 45 50 65 ns CE=VIL tDF OE High to Output Float, 50 ns 0 30 0 30 0 35 0 0 0 or CE High to Output Float tOH Output Hold from Address,CE or 0 0 ns OE which ever occurred first DC PROGRAMMING CHARACTERISTICS TA = 25oC ± 5oC SYMBOL PARAMETER MIN. VOH Output High Voltage 2.4 VOL Output Low Voltage VIH Input High Voltage VIL MAX. UNIT CONDITIONS V IOH = -0.40mA 0.4 V IOL = 2.1mA 2.0 VCC + 0.5 V Input Low Voltage -0.3 0.8 V ILI Input Leakage Current -10 10 uA VH A9 Auto Select Voltage 11.5 12.5 V ICC3 VCC Supply Current (Program & Verify) 50 mA IPP2 VPP Supply Current(Program) 30 mA VCC1 Fast Programming Supply Voltage 6.00 6.50 V VPP1 Fast Programming Voltage 12.5 13.0 V VIN = 0 to 5.5V CE = VIL,OE = VIH AC PROGRAMMING CHARACTERISTICS TA = 25oC ± 5oC SYMBOL PARAMETER MIN. MAX. tAS Address Setup Time 2.0 us tOES OE Setup Time 2.0 us tDS Data Setup Time 2.0 us tAH Address Hold Time 0 us tDH Data Hold Time 2.0 us tDFP Output Enable to Output Float Delay 0 tVPS VPP Setup Time 2.0 tPW PGM Program Pulse Width 10 tVCS VCC Setup Time 2.0 tOE Data valid from OE 130 UNIT CONDITIONS ns us 50 us us 150 ns REV. 1.6, JUL. 19, 2001 P/N: PM00694 7 MX27C4000A WAVEFORMS READ CYCLE ADDRESS INPUTS DATA ADDRESS tACC CE tCE OE tDF DATA OUT VALID DATA tOE tOH FAST PROGRAMMING ALGORITHM WAVEFORM PROGRAM PROGRAM VERIFY VIH Addresses VIL DATA tAH Hi-z tAS DATA OUT VALID DATA IN STABLE tDS tDFP tDH VPP1 VPP VCC tVPS VCC1 VCC tVCS VCC VIH CE VIL tOES tPW OE tOE Max VIH VIL REV. 1.6, JUL. 19, 2001 P/N: PM00694 8 MX27C4000A ORDERING INFORMATION PLASTIC PACKAGE PART NO. ACCESS TIME OPERATING STANDBY OPERATING PACKAGE (ns) Current MAX.(mA) Current MAX.(uA) MX27C4000APC-90 90 30 100 0°C to 70°C 32 Pin DIP MX27C4000AQC-90 90 30 100 0°C to 70°C 32 Pin PLCC MX27C4000AMC-90 90 30 100 0°C to 70°C 32 Pin SOP MX27C4000ATC-90 90 30 100 0°C to 70°C 32 Pin TSOP MX27C4000APC-10 100 30 100 0°C to 70°C 32 Pin DIP MX27C4000AQC-10 100 30 100 0°C to 70°C 32 Pin PLCC MX27C4000AMC-10 100 30 100 0°C to 70°C 32 Pin SOP MX27C4000ATC-10 100 30 100 0°C to 70°C 32 Pin TSOP MX27C4000APC-12 120 30 100 0°C to 70°C 32 Pin DIP MX27C4000AQC-12 120 30 100 0°C to 70°C 32 Pin PLCC MX27C4000AMC-12 120 30 100 0°C to 70°C 32 Pin SOP MX27C4000ATC-12 120 30 100 0°C to 70°C 32 Pin TSOP MX27C4000APC-15 150 30 100 0°C to 70°C 32 Pin DIP MX27C4000AQC-15 150 30 100 0°C to 70°C 32 Pin PLCC MX27C4000AMC-15 150 30 100 0°C to 70°C 32 Pin SOP MX27C4000ATC-15 150 30 100 0°C to 70°C 32 Pin TSOP MX27C4000API-90 90 30 100 -40°C to 85°C 32 Pin DIP MX27C4000AQI-90 90 30 100 -40°C to 85°C 32 Pin PLCC MX27C4000AMI-90 90 30 100 -40°C to 85°C 32 Pin SOP MX27C4000ATI-90 90 30 100 -40°C to 85°C 32 Pin TSOP MX27C4000API-10 100 30 100 -40°C to 85°C 32 Pin DIP MX27C4000AQI-10 100 30 100 -40°C to 85°C 32 Pin PLCC MX27C4000AMI-10 100 30 100 -40°C to 85°C 32 Pin SOP MX27C4000ATI-10 100 30 100 -40°C to 85°C 32 Pin TSOP MX27C4000API-12 120 30 100 -40°C to 85°C 32 Pin DIP MX27C4000AQI-12 120 30 100 -40°C to 85°C 32 Pin PLCC MX27C4000AMI-12 120 30 100 -40°C to 85°C 32 Pin SOP MX27C4000ATI-12 120 30 100 -40°C to 85°C 32 Pin TSOP MX27C4000API-15 150 30 100 -40°C to 85°C 32 Pin DIP MX27C4000AQI-15 150 30 100 -40°C to 85°C 32 Pin PLCC MX27C4000AMI-15 150 30 100 -40°C to 85°C 32 Pin SOP MX27C4000ATI-15 150 30 100 -40°C to 85°C 32 Pin TSOP TEMPERATURE REV. 1.6, JUL. 19, 2001 P/N: PM00694 9 MX27C4000A PACKAGE INFORMATION 32-PIN PLASTIC DIP(600 mil) REV. 1.6, JUL. 19, 2001 P/N: PM00694 10 MX27C4000A 32-PIN PLASTIC LEADED CHIP CARRIER (PLCC) REV. 1.6, JUL. 19, 2001 P/N: PM00694 11 MX27C4000A 32-PIN PLASTIC SOP (450 mil) REV. 1.6, JUL. 19, 2001 P/N: PM00694 12 MX27C4000A 32-PIN PLASTIC TSOP REV. 1.6, JUL. 19, 2001 P/N: PM00694 13 MX27C4000A REVISION HISTORY Revision No. Description 1.1 Modify Fast Programming Flowchart--Program One 100us Pulse -->10us Pulse Modify AC Programming Characteristics--tPW 95-->10(MIN.) 1.2 Cencel 150ns speed Add "Advance Information" 1.3 Add tPW(MAX.):50us 1.4 Modify Absolute Naximum Ratings--Ambient Operation Temperature 0°C to 70°C --> -40°C to 85°C Add Package type: 32PLCC Add Order Information--> -40°C to 85°C Operating Temperature Del Fast access time:100ns 1.5 To added access time 100/150ns and 32SOP/TSOP type package To changed ID Code from 41H to C0H 1.6 To modify Package Information Page P4 P7 P1,5,6,7,10 P1 P7 P6 P1,9 P9 P1,6,7 P1,6,7,9,11 P3 P10~13 Date JUL/06/2000 JUL/13/2000 SEP/01/2000 SEP/08/2000 MAR/19/2001 JUL/19/2001 REV. 1.6, JUL. 19, 2001 P/N: PM00694 14 MX27C4000A MACRONIX INTERNATIONAL CO., LTD. HEADQUARTERS: TEL:+886-3-578-6688 FAX:+886-3-563-2888 EUROPE OFFICE: TEL:+32-2-456-8020 FAX:+32-2-456-8021 JAPAN OFFICE: TEL:+81-44-246-9100 FAX:+81-44-246-9105 SINGAPORE OFFICE: TEL:+65-348-8385 FAX:+65-348-8096 TAIPEI OFFICE: TEL:+886-2-2509-3300 FAX:+886-2-2509-2200 MACRONIX AMERICA, INC. TEL:+1-408-453-8088 FAX:+1-408-453-8488 CHICAGO OFFICE: TEL:+1-847-963-1900 FAX:+1-847-963-1909 http : //www.macronix.com MACRONIX INTERNATIONAL CO., LTD. reserves the right to change product and specifications without notice. 15