27C256TRPDB-20

27C256T 256K (32K x 8-Bit) OTP EPROM A5-A9 1024 x 1022 Memory Matrix x-Decoder NC A12-A14 A12-A16 I/O0 I/O 7 I/O15 Input Data Control Y- Gating Y - Decoder 27C256T CE OE PGM A0-A4 A10-A11 VCC VPP VSS H H : High Threshhold Inverter Memory Logic Diagram FEATURES: • 32K x 8-bit OTP EPROM organization • RAD-PAK® radiation-hardened against natural space radiation • Total dose hardness: - > 100 Krad (Si), depending upon space mission • Excellent Single Event Effects: -SELTH > 80 MeV/mg/cm2 -SEUTH > 80 Mev/mg/cm2 • Package: -32 pin RAD-PAK® flat pack -32 pin RAD-PAK® DIP • Fast access time: - 120, 150, 200 ns (max) • Low power dissipation: - Active mode: 100 mW/MHz (typ) - Standby mode: 10 µ W (typ) Page programming time: 14 sec (typ) • Programming power supply: - VPP = 12.5 V • One-time programmable • Pin arrangement - JEDEC standard byte-wide EPROM - Flash memory and mask ROM compatible DESCRIPTION: Maxwell Technologies’ 27C256T high density 256-Kilobit onetime programmable electrically programmable read only memory microcircuit features a greater than 100 krad (Si) total dose tolerance, depending upon space mission. The 27C256T features fast address times and low power dissipation. The 27C256T offers high speed programming using page programming mode. Maxwell Technologies' patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, RAD-PAK® provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S. 06.24.02 REV 4 All data sheets are subject to change without notice 1 (858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM TABLE 1. 27C256T PINOUT DESCRIPTION PIN 1 2, 3, 30 12-5, 27, 26, 23, 25, 4, 28, 29 22 24 13-15, 17-21 16 31 32 SYMBOL VPP NC A0-A14 CE OE I/O0 - I/O7 GND PGM VCC DESCRIPTION Programming Voltage Not connected Address Enable Chip Enable Output Enable Data Input/Output Ground Program +5V Power Supply 27C256T Memory TABLE 2. 27C256T ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage 1 Programming Voltage 1 All Input and Output Voltage A9 and OE Voltage Thermal Resistance Operating Temperature Range Storage Temperature Range 1. Relative to VSS. 2. VIN, VOUT, and VID min = -1.0V for pulse width < 20 ns. 1,2 SYMBOL VCC VPP VIN, VOUT VID TJC TOPR TSTG MIN -0.6 -0.6 -0.6 -0.6 -55 -65 MAX +7.0 +13.5 +7.0 13.0 1.26 +125 +125 UNIT V V V V ° C/W °C °C TABLE 3. DELTA LIMITS PARAMETER ICC1 ICC2 ICC3A ICC3B VARIATION ±10% ±10% ±10% ±10% 06.24.03 REV 4 All data sheets are subject to change without notice 2 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM TABLE 4. 27C256T RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Input Voltage Operating Temperature Range 1. VIL min = -1.0V for pulse width < 50 ns. 2. VIH max = VCC + 1.5V for pulse width < 20 ns. SYMBOL VCC VIL VIH TOPR MIN 4.5 -0.31 2.2 -55 27C256T MAX 5.5 0.8 VCC +12 +125 °C UNITS V V TABLE 5. 27C256T CAPACITANCE 1 PARAMETER Input Capacitance Output Capacitance 1. Guaranteed by design. SYMBOL CIN COUT MIN --MAX 10 15 UNIT pF pF Memory TABLE 6. 27C256T DC ELECTRICAL CHARACTERISTICS FOR READ OPERATION (VCC = 5V + 10%, VPP = VSS TO VCC, TA = -55 TO +125 ° C, UNLESS OTHERWISE SPECIFIED) PARAMETER Input Leakage Current Output Leakage Current Standby VCC Current Operating VCC Current TEST CONDITION VIN = 5.5 V VOUT = 5.5 V/0.45 V CE = VIH IOUT = 0 mA, CE = VIL IOUT = 0 mA, f = 5 MHz IOUT = 0 mA, f = 10 MHz VPP Current Input Voltage Output Voltage IOH= -400µ A IOL= 2.1 mA VPP = 5.5 V SYMBOL ILI ILO Icc1 ICC2 ICC3A ICC3B IPP1 VIH VIL VOH VOL SUBGROUPS 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 MIN -------2.2 -2.4 ---TYP ------1 -MAX 2 2 1 30 30 50 20 -0.8 -0.45 V µA V UNIT µA µA mA mA 06.24.03 REV 4 All data sheets are subject to change without notice 3 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM 27C256T TABLE 7. 27C256T AC ELECTRICAL CHARACTERISTICS FOR READ OPERATION 1,2 (VCC = 5V + 10%, VPP = VSS TO VCC, TA = -55 TO +125 ° C, UNLESS OTHERWISE SPECIFIED) PARAMETER Address Access Time -120 -150 -200 Chip Enable Access Time -120 -150 -200 Output Enable Access Time -120 -150 -200 Output Hold to Address Change -120 -150 -200 Output Disable to High-Z3 -120 -150 -200 TEST CONDITION CE = OE = VIL SYMBOL tACC SUBGROUPS 9, 10, 11 ---OE = VIL tCE 9, 10, 11 ---CE = VIL tOE 9, 10, 11 ---CE = VIL tOH 9, 10, 11 0 0 0 CE = OE = VIL tDF 9, 10, 11 0 0 0 50 50 50 ns ---ns 60 70 70 ns 120 150 200 ns 120 150 200 ns MIN MAX UNIT Memory 1. tDF is defined as the time at which the output becomes an open circuit and data is no longer driven. 2. AC electrical parameters for programming operations are not tested. These are guaranteed by design. 3. Test conditions: - Input pulse levels 0.45V/2.4V - Input rise and fall times < 10 ns - Output load 1TTL Fate + 100 pF (including scope and jig) - Referenced levels for measuring timing 0.8V/2.0V 06.24.03 REV 4 All data sheets are subject to change without notice 4 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM 27C256T TABLE 8. 27C256T AC ELECTRICAL CHARACTERISTICS FOR PROGRAMMING OPERATION 1,2 (VCC = 6.0V + 0.25V, VPP = 12.5V + 0.3V, TA = 25 ° C) PARAMETER Address Setup Time Address Hold Time Data Setup Time Data Hold Time VPP Setup Time VCC Setup Time Output Enable Setup Time Output Disable Time CE Initial Programming Pulse Width CE Overprogramming Pulse Width Output Enable Hold Time VPP Recovery Time Data Valid from Chip Enable SYMBOL tAS tAH tDS tDH tVPS tVCS tOES tDF3 tPW tOPW tOEH tVR tDV SUBGROUPS 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 MIN 2 0 2 2 2 2 2 0 0.19 0.19 2 2 1 TYP --------0.20 ----MAX -------130 0.21 5.25 ---UNIT µs µs µs µs µs µs µs ns ms ms µs µs µs Memory 1. tDF is defined as the time at which the output becomes an open circuit and data is no longer driven. 2. AC electrical parameters for programming operations are not tested. These are guaranteed by design. 3. Test Conditions: - Input pulse levels 0.45V/2.4V - Input rise and fall times < 20 ns - Referenced levels for measuring timing 0.8V/2.0V TABLE 9. 27C256T DC ELECTRICAL CHARACTERISTICS FOR PROGRAMMING OPERATIONS1,2,3,4 (VCC = 6.0V + 0.25V, VPP = 12.5V + 0.3V, TA = 25 ° C) PARAMETER Input Leakage Current Operating VCC Current Operating VPP Current Input Voltage5 Output Voltage IOH=-400µ A IOH= 2.1mA 1. 2. 3. 4. 5. CE=PGM=VIL TEST CONDITION VIN=0V to VCC SYMBOL SUBGROUPS ILI ICC IPP VIH VIL VOH VOL 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 MIN ---2.2 -0.17 2.4 -MAX 2 30 40 VCC+0.56 0.8 -0.45 V UNIT µA mA mA V VCC must be applied before VPP and removed after VPP. VPP must not exceed 13V, including overshoot. Do not change VPP from VIL to 12.5V or 12.5V to VIL when CE = low. DC electrical parameters for programming operations are not tested. These are guaranteed by design. Device reliability may be adversely affected if the device is installed or removed while VPP = 12.5V. 06.24.03 REV 4 All data sheets are subject to change without notice 5 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM 6. If VIH is over the specified maximum value, programming operation can not be guaranteed. 7. VIL min = -0.6V for pulse width < 20 ns. 27C256T TABLE 10. 27C256T MODE SELECTION MODE Read Output Disable Standby Program Program Verify Page Data Latch Page Program Program Inhibit VPP VCC VCC VCC VPP VPP VPP VPP VCC VPP VPP VPP Identifier 1. X = Don’t care. VPP=0V to VCC 2. 11.5V < VH < 12.5V. VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC CE VIL VIL VIH VIL VIL VIH VIH VIL VIL VIH VIH VIL OE VIL VIH X VIH VIL VIL VIH VIL VIH VIL VIH VIL PGM VIH VIH X VIL VIH VIH VIL VIL VIH VIL VIH VIH A9 X1 X X X X X X X X X X VH2 I/O DOUT High-Z High-Z DIN DOUT DIN High-Z High-Z High-Z High-Z High-Z ID Memory 06.24.03 REV 4 All data sheets are subject to change without notice 6 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM FIGURE 1. READ TIMING WAVEFORM 27C256T Memory 06.24.03 REV 4 All data sheets are subject to change without notice 7 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM FIGURE 2. PAGE PROGRAMMING FLOWCHART START 27C256T SET PAGE PROG. MODE VPP=12.5+0.3V, VCC=6.0+ 0.25V Address=0 A n=0 n+1 Latch NO Address+1 Address Address+1 Address SET PAGE PROG./ VERIFY MODE VPP=12.5+0.3V, VCC=6.0+0.25V n=25 YES n Latch Memory Program t PW=0.2ms+5% Address+1 Address VERIFY NOGO B Latch B GO Program t OPW=0.2ms Address+1 Address NO Latch Last Address? YES A SET PAGE MODE VCC=5.0+0.25V, V PP=VCC READ All Address GO END NOGO FAIL 06.24.03 REV 4 All data sheets are subject to change without notice 8 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM FIGURE 3. PAGE PROGRAMMING TIMING WAVEFORM 27C256T Memory 06.24.03 REV 4 All data sheets are subject to change without notice 9 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM FIGURE 4. BYTE PROGRAMMING FLOWCHART START 27C256T SET PROG./VERIFY MODE VPP=12.5+0.3V, V CC=6.0+0.25V Address=0 n=0 n+1 n Program t PW=1ms+5% Memory Address+1 Address VERIFY GO NOGO Program t OPW=0.2ms n=25 YES NO NO Last Address? YES SET PAGE MODE VCC=5.0+0.25V, V PP=VCC READ All Address GO END NOGO FAIL 06.24.03 REV 4 All data sheets are subject to change without notice 10 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM FIGURE 5. BYTE PROGRAMMING TIMING WAVEFORM 27C256T Memory DEVICE IDENTIFIER MODE DESCRIPTION The Device Identifier Mode allows binary codes to be read from the outputs that identify the manufacturer and the type of device. Using this mode with programming equipment, the device will automatically match its own erase and programming algorithm. 27C256T SERIES IDENTIFIER CODE IDENTIFIER MANUFACTURER CODE DEVICE CODE 1. 2. 3. 4. A0 VIL VIH I/O7 0 0 I/O6 0 0 I/O5 0 1 I/O4 0 1 I/O3 0 1 I/O2 1 0 I/O1 1 0 I/O0 1 0 HEX DATA 07 38 VCC = 5.0V + 10%. A9 = 12.0V + 0.5V. A1-A8, A10-A14, CE, OE = VIL, PGM = VIH. X = Don’t care. 06.24.03 REV 4 All data sheets are subject to change without notice 11 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM 27C256T Memory 32 PIN RAD-PAK® DUAL IN LINE PACKAGE1 SYMBOL MIN A b b2 c D E eA eA/2 e L Q S1 S2 0.135 0.015 0.005 0.005 -0.014 0.045 0.008 -0.510 DIMENSION NOM 0.215 0.018 0.050 0.010 1.600 0.590 0.600 BSC 0.300 BSC 0.100 BSC 0.145 0.035 0.025 -0.155 0.070 --MAX 0.240 0.026 0.065 0.018 1.680 0.620 N 32 1. Standard Product Screening Flow MIL-STD-883, Method 2001, Constant Acceleration: For this package type Constant Acceleration is 3000g’s. Note: All dimensions in inches 06.24.03 REV 4 All data sheets are subject to change without notice 12 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM Important Notice: 27C256T These data sheets are created using the chip manufacturers published specifications. Maxwell Technologies verifies functionality by testing key parameters either by 100% testing, sample testing or characterization. The specifications presented within these data sheets represent the latest and most accurate information available to date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no responsibility for the use of this information. Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems without express written approval from Maxwell Technologies. Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Technologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts. Memory 06.24.03 REV 4 All data sheets are subject to change without notice 13 ©2003 Maxwell Technologies All rights reserved. 256K (32K x 8-Bit) OTP EPROM Product Ordering Options Model Number 27C256T RP X X -XX Feature Access Time 27C256T Option Details 12 = 120 ns 15 = 150 ns 20 = 200 ns Screening Flow Monolithic S = Maxwell Class S B = Maxwell Class B I = Industrial (testing @ -55°C, +25°C, +125°C) E = Engineering (testing @ +25°C) Memory Package D = Dual In-line Package (DIP) Radiation Feature RP = RAD-PAK® package Base Product Nomenclature 256K (32K x 8-Bit) OTP EPROM 06.24.03 REV 4 All data sheets are subject to change without notice 14 ©2003 Maxwell Technologies All rights reserved.