FINAL Am27X040 4 Megabit (512 K x 8-Bit) CMOS ExpressROM Device DISTINCTIVE CHARACTERISTICS ■ ±10% power supply tolerance ■ As an OTP EPROM alternative: — Factory optimized programming ■ High noise immunity — Fully tested and guaranteed ■ Low power dissipation — 100 µA maximum CMOS standby current ■ As a Mask ROM alternative: ■ Available in Plastic Dual-In-line Package (PDIP) and Plastic Leaded Chip Carrier (PLCC) — Shorter leadtime — Lower volume per code ■ Latch-up protected to 100 mA from –1 V to VCC + 1 V ■ Fast access time — 90 ns ■ Versatile features for simple interfacing ■ Single +5 V power supply — Both CMOS and TTL input/output compatibility ■ Compatible with JEDEC-approved EPROM pinout — Two line control functions GENERAL DESCRIPTION The Am27X040 is a factory programmed and tested OTP EPROM. It is programmed after packaging prior to final test. Every device is rigorously tested under AC and DC operating conditions to your stable code. It is organized as 512 Kwords by 8 bits per word and is available in plastic dual in-line packages (PDIP), as well as plastic leaded chip carrier (PLCC) packages. ExpressROM devices provide a board-ready memory solution for medium to high volume codes with short leadtimes. This offers manufacturers a cost-effective and flexible alternative to OTP EPROMs and mask programmed ROMs. Data can be accessed as fast as 90 ns, allowing high-performance microprocessors to operate with reduced WAIT states. The device offers separate Output Enable (OE#) and Chip Enable (CE#) controls, thus eliminating bus contention in a multiple bus microprocessor system. AMD’s CMOS process technology provides high speed, low power, and high noise immunity. Typical power consumption is only 100 mW in active mode, and 100 µW in standby mode. BLOCK DIAGRAM VCC Data Outputs DQ0–DQ7 VSS OE# CE# A0–A17 Address Inputs Output Enable Chip Enable and Prog Logic Output Buffers Y Decoder Y Gating X Decoder 2,097,152 Bit Cell Matrix 15654D-1 Publication# 15654 Rev: D Amendment/0 Issue Date: May 1998 PRODUCT SELECTOR GUIDE Family Part Number Am27X040 VCC = 5.0 V ± 10% -90 -120 -150 -200 Max Access Time (ns) 90 120 150 200 CE# (E#) Access (ns) 90 120 150 200 OE# (G#) Access (ns) 40 50 65 75 Speed Options CONNECTION DIAGRAMS Top View A17 32 VCC A16 A18 1 A16 2 31 A18 4 3 2 1 32 31 30 A15 3 30 A17 A7 5 29 A14 A12 4 29 A14 A6 6 28 A13 A7 5 28 A13 A5 7 27 A8 A6 6 27 A8 A4 8 26 A9 9 25 A11 VPP VPP A15 VCC PLCC A12 DIP A5 7 26 A9 A3 A4 8 25 A11 A2 10 24 OE# (G#) OE# (G#) A1 11 23 A10 A0 12 22 CE# (E#) DQ0 13 21 DQ7 A10 CE# (E#) A0 12 21 DQ7 DQ0 13 20 DQ6 DQ1 14 19 DQ5 DQ2 15 18 DQ4 VSS 16 17 DQ3 14 15 16 17 18 19 20 DQ6 22 DQ5 11 DQ1 A1 DQ4 23 VSS 10 24 DQ3 A2 9 DQ2 A3 15654D-3 15654D-2 Notes:. 1. JEDEC nomenclature is in parenthesis. 2. Don’t use (DU) for PLCC. PIN DESIGNATIONS A0–A18 = Address Inputs CE# (E#) = Chip Enable Input DQ0–DQ7 = Data Input/Outputs OE# (G#) = Output Enable Input VCC = VCC Supply Voltage VPP = Program Voltage Input VSS = Ground NC = No Internal Connection LOGIC SYMBOL 19 8 A0–A18 DQ0–DQ7 CE# (E#) OE# (G#) 15654D-4 2 Am27X040 ORDERING INFORMATION Standard Products AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed by a combination of the following: AM27X040 -90 J C XXXXX CODE DESIGNATION Assigned by AMD TEMPERATURE RANGE C = Commercial (0°C to +70°C) I = Industrial (–40°C to +85°C) PACKAGE TYPE P = 32-Pin Plastic Dual In-Line Package (PD 032) J = 32-Pin Plastic Leaded Chip Carrier (PL 032) SPEED OPTION See Product Selector Guide and Valid Combinations DEVICE NUMBER/DESCRIPTION Am27X040 2 Megabit (512 K x 8-Bit) CMOS ExpressROM Device Valid Combinations Valid Combinations AM27X040-90 AM27X040-120 PC, JC, PI, JI Valid Combinations list configurations planned to be supported in volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on newly released combinations. AM27X040-150 AM27X040-200 Am27X040 3 FUNCTIONAL DESCRIPTION Read Mode To obtain data at the device outputs, Chip Enable (CE#) and Output Enable (OE#) must be driven low. CE# controls the power to the device and is typically used to select the device. OE# enables the device to output data, independent of device selection. Addresses must be stable for at least t ACC –t OE. Refer to the Switching Waveforms section for the timing diagram. CE# should 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. System Applications Standby Mode The device enters the CMOS standby mode when CE# is at VCC ± 0.3 V. Maximum VCC current is reduced to 100 µA. The device enters the TTL-standby mode when CE# is at VIH. Maximum VCC current is reduced to 1.0 mA. When in either standby mode, the device places its outputs in a high-impedance state, independent of the OE# input. Output OR-Tieing To accommodate multiple memory connections, a two-line control function provides: ■ Low memory power dissipation, and ■ Assurance that output bus contention will not occur. 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 µF ceramic capacitor (high frequency, low inherent inductance) should be used on each device between VCC and VSS to minimize transient effects. In addition, to overcome the voltage drop caused by the inductive effects of the printed circuit board traces on ExpressROM device arrays, a 4.7 µF bulk electrolytic capacitor should be used between VCC and VSS for each eight devices. The location of the capacitor should be close to where the power supply is connected to the array. MODE SELECT TABLE Mode CE# OE# VPP Outputs Read VIL VIL X DOUT Output Disable X VIH X High Z Standby (TTL) VIH X X High Z VCC ± 0.3 V X X High Z Standby (CMOS) Note: X = Either VIH or VIL. 4 Am27X040 ABSOLUTE MAXIMUM RATINGS OPERATING RANGES Storage Temperature OTP Products. . . . . . . . . . . . . . . . . . –65°C to +125°C Ambient Temperature with Power Applied. . . . . . . . . . . . . . –55°C to +125°C Commercial (C) Devices Ambient Temperature (TA) . . . . . . . . . . .0°C to +70°C Industrial (I) Devices Voltage with Respect to VSS All pins except VCC . . . . . . . . . –0.6 V to VCC + 0.6 V Ambient Temperature (TA) . . . . . . . . .–40°C to +85°C VCC (Note 1). . . . . . . . . . . . . . . . . . . . . –0.6 V to 7.0 V VCC for ± 10% devices . . . . . . . . . +4.50 V to +5.50 V Note: Operating ranges define those limits between which the functionality of the device is guaranteed. 1. Minimum DC voltage on input or I/O pins –0.5 V. During voltage transitions, the input may overshoot VSS to –2.0 V for periods of up to 20 ns. Maximum DC voltage on input and I/O pins is VCC + 5 V. During voltage transitions, input and I/O pins may overshoot to VCC + 2.0 V for periods up to 20 ns. Supply Read Voltages Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only; 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 of the device to absolute maximum ratings for extended periods may affect device reliability. Am27X040 5 DC CHARACTERISTICS over operating range (unless otherwise specified) Parameter Symbol Parameter Description Test Conditions VOH Output HIGH Voltage IOH = –400 µA VOL Output LOW Voltage IOL = 2.1 mA VIH Input HIGH Voltage VIL Input LOW Voltage ILI Input Load Current ILO Min Max Unit 2.4 V 0.45 V 2.0 VCC + 0.5 V –0.5 +0.8 V VIN = 0 V to VCC 1.0 µA Output Leakage Current VOUT = 0 V to VCC 5.0 µA ICC1 VCC Active Current (Note 2) CE# = VIL, f = 10 MHz, IOUT = 0 mA 40 mA ICC2 VCC TTL Standby Current CE# = VIH 1.0 mA ICC3 VCC CMOS Standby Current CE# = VCC ± 0.3 V 100 µA Caution: The device must not be removed from (or inserted into) a socket when VCC or VPP is applied. Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP.. 25 25 20 20 Supply Current in mA Supply Current in mA 2. ICC1 is tested with OE# = VIH to simulate open outputs. 3. Minimum DC Input Voltage is –0.5 V. During transitions, the inputs may overshoot to –2.0 V for periods less than 20 ns. Maximum DC Voltage on output pins is VCC + 0.5 V, which may overshoot to VCC + 2.0 V for periods less than 20 ns. 15 10 Figure 1. 6 2 3 4 5 6 7 Frequency in MHz 8 9 10 5 –75 –50 –55 0 25 50 75 100 125 150 Temperature in °C 5 1 15 10 15654D-5 15654D-6 Typical Supply Current vs. Frequency VCC = 5.5 V, T = 25°C Figure 2. Typical Supply Current vs. Temperature VCC = 5.5 V, f = 10 MHz Am27X040 TEST CONDITIONS Table 1. 5.0 V Test Specifications Test Condition 2.7 kΩ Device Under Test CL Output Load Unit 1 TTL gate Output Load Capacitance, CL (including jig capacitance) 100 pF Input Rise and Fall Times ≤ 20 ns Input Pulse Levels 0.45–2.4 V Input timing measurement reference levels 0.8, 2.0 V Output timing measurement reference levels 0.8, 2.0 V 6.2 kΩ Note: Diodes are IN3064 or equivalents. All 15654D-7 Figure 3. Test Setup SWITCHING TEST WAVEFORM 2.4 V 2.0 V 2.0 V Test Points 0.8 V 0.8 V 0.45 V Input Output Note: For CL = 100 pF. 15654D-8 KEY TO SWITCHING WAVEFORMS WAVEFORM INPUTS OUTPUTS Steady Changing from H to L Changing from L to H Don’t Care, Any Change Permitted Changing, State Unknown Does Not Apply Center Line is High Impedance State (High Z) KS000010-PAL Am27X040 7 AC CHARACTERISTICS Parameter Symbols Am27X040 JEDEC Standard Description Test Setup -90 -120 -150 -200 Unit tAVQV tACC Address to Output Delay CE#, OE# = VIL Max 100 120 150 200 ns tELQV tCE Chip Enable to Output Delay OE# = VIL Max 100 120 150 200 ns tGLQV tOE Output Enable to Output Delay CE# = VIL Max 40 50 55 60 ns tEHQZ tGHQZ tDF (Note 2) Chip Enable High or Output Enable High to Output High Z, Whichever Occurs First Max 30 30 30 40 ns tAXQX tOH Output Hold Time from Addresses, CE# or OE#, Whichever Occurs First Min 0 0 0 0 ns Caution: Do not remove the device from (or insert it into) a socket or board that has VPP or VCC applied. Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP. 2. This parameter is sampled and not 100% tested. 3. Switching characteristics are over operating range, unless otherwise specified. 4. See Figure 3 and Table 1 for test specifications. SWITCHING WAVEFORMS 2.4 Addresses 0.45 2.0 0.8 2.0 0.8 Addresses Valid CE# tCE OE# tDF (Note 2) tOE High Z Output tACC (Note 1) tOH High Z Valid Output 15654D-9 Notes: 1. OE# may be delayed up to tACC – tOE after the falling edge of the addresses without impact on tACC. 2. tDF is specified from OE# or CE#, whichever occurs first. PACKAGE CAPACITANCE Parameter Symbol CIN COUT PD 032 Parameter Description Test Conditions Typ Max Typ Max Unit Input Capacitance VIN = 0 10 12 8 10 pF Output Capacitance VOUT = 0 12 15 9 12 pF Notes: 1. This parameter is only sampled and not 100% tested. 2. TA = +25°C, f = 1 MHz. 8 PL 032 Am27X040 PHYSICAL DIMENSIONS PD 032—32-Pin Plastic Dual In-Line Package (measured in inches) 1.640 1.680 .600 .625 17 32 .008 .015 .530 .580 Pin 1 I.D. .630 .700 16 .045 .065 0˚ 10˚ .005 MIN .140 .225 16-038-SB_AG PD 032 DG75 2-28-95 ae SEATING PLANE .090 .110 .120 .160 .014 .022 .015 .060 PL 032—32-Pin Plastic Leaded Chip Carrier (measured in inches) .447 .453 .485 .495 .009 .015 .585 .595 .042 .056 .125 .140 Pin 1 I.D. .080 .095 .547 .553 SEATING PLANE .400 REF. .490 .530 .013 .021 .050 REF. .026 .032 TOP VIEW SIDE VIEW Am27X040 16-038FPO-5 PL 032 DA79 6-28-94 ae 9 REVISION SUMMARY FOR AM27X040 Revision D Global Changed formatting to match current data sheets. Removed the 95, 100, 250, and 255 speed options, added the 90 speed option Absolute Maximum Ratings Storage Temperature: Removed “All Other Products ... –65°C to +150°C”. Operating Ranges Supply Read Voltages: Deleted “VCC for ± 5% devices . . .+4.75 V to +5.25 V” Trademarks Copyright © 1998 Advanced Micro Devices, Inc. All rights reserved. AMD, the AMD logo, and combinations thereof are trademarks of Advanced Micro Devices, Inc. Flashrite is a trademark of Advanced Micro Devices, Inc. Product names used in this publication are for identification purposes only and may be trademarks of their respective companies. 10 Am27X040