AT60142FT_07 ATMEL | Alldatasheet

Document overview

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Technical content

Features

  • Operating Voltage: 3.3V, 5V tolerant
  • Access Time: – 17 ns – 15 ns
  • Very Low Power Consumption – Active: 610 mW (Max) @ 17 ns (1) , 540 mW (Max) @ 25 ns – Standby: 3.3 mW (Typ)
  • Wide Temperature Range: -55 to +125 °C
  • TTL-Compatible Inputs and Outputs
  • Asynchronous
  • Designed on 0.25 µm Radiation Hardened Process
  • No Single Event Latch Up below LET Threshold of 80 MeV/mg/cm 2
  • Tested up to a Total Dose of 300 krads (Si) according to MIL-STD-883 Method 1019
  • 500 Mils Wide FP36 Package
  • ESD Better than 2000V
  • Quality Grades: ESCC with 9301/052, QML-Q or V with smd 5962-05208 Note: 1. 650 mW (Max) @ 15 ns

Description

The AT60142FT is a very low power CMOS static RAM organized as 512K x 8 bits. Atmel brings the solution to applications where fast computing is as mandatory as low consumption, such as aerospace electronics, portabl e instruments, or embarked systems. Utilizing an array of six transistors (6T) memory c ells, the AT60142FT combines an extremely low standby supply current (Typical value = 1 mA) with a fast access time at 15 ns over the full military temperature range. The high stability of the 6T cell provides excellent protection against soft errors due to noise. The AT60142FT is processed according to the methods of the latest revision of the MIL PRF 38535 or ESCC 9000. It is produced on a radiation hardened 0.25 µm CMOS process. Rad Hard 512K x 8 5V Tolerant Very Low Power CMOS SRAM AT60142FT

7726A–AERO–07/07 Block Diagram Pin Configuration CS I/O1 I/O2 Vcc GND I/O3 I/O4 WE NC A18 A17 A16 A15 OE I/O8 I/O7 GND Vcc I/O6 I/O5 A14 A13 A12 A11 A10 N/C 36 - pin -Flatpack - 500 Mils

3 AT60142FT

Table 2. Truth Table (1) Note: 1. L=low, H=high, X= L or H, Z=high impedance.

7726A–AERO–07/07

Electrical Characteristics

Absolute Maximum Ratings* Military Operating Range Recommended DC Operating Conditions Note: 1. 5.8V in transient conditions. Capacitance Note: 1. Guaranteed but not tested. 883D Method 3015.3) *NOTE: Stresses beyond those listed under "Absolute Maxi- mum Ratings” may cause permanent damage to the device. This is a stress rating only and functional oper- ation of the device at these or any other condition s beyond those indicated in the operational sections of this specification is not implied. Exposure to abso lute maximum rating conditions for extended periods may affect device reliability. Operating Voltage Operating Temperature Military 3.3 + 0.3V -55 °C to + 125 °C Parameter Description Min Typ Max Unit Vcc Supply voltage 3 3.3 3.6 V GND Ground 0.0 0.0 0.0 V VIL Input low voltage GND - 0.3 0.0 0.8 V VIH Input high voltage 2.2 – 5.5 (1) V Parameter Description Min Typ Max Unit Cin (1) Input capacitance – – 12 pF Cout (1) Output capacitance – – 12 pF

5 AT60142FT

7726A–AERO–07/07 DC Parameters Consumption Parameter Description Minimum Typical Maximum Unit IIX (1) 1. GND < V IN < V CC , GND < V OUT < V CC Output Disabled. 2. V IN = 5.5V, V OUT = 5.5V, Output Disabled. 3. V CC min. IOL = 6 mA 4. V CC min. IOH = -4 mA. Input leakage current -1 – 1 µ A IOZ (1) Output leakage current -1 – 1 µ A IIH (2) at 5.5V Input Leakage Current – – 2 µ A IOZH (2) at 5.5V Output Leakage Current – – 1.5 µ A VOL (3) Output low voltage – – 0.4 V VOH (4) Output high voltage 2.4 – – V Symbol Description TAVAV/TAVAW Test Condition AT60142FT-17 AT60142FT-15 Unit Value ICCSB (1) 1. CS >VIH Standby Supply Current – 2 2.5 mA max I CCSB1 (2) 2. CS > VCC - 0.3V 3. F = 1/ TAVAV , I out = 0 mA, WE = OE = V IH , V IN = GND/V CC , V CC max. 4. F = 1/ TAVAW , I out = 0 mA, WE = V IL , OE = V IH , V IN = GND/V CC , V CC max. Standby Supply Current – 1.8 2 mA max I CCOP (3) Read Dynamic Operating Current 15 ns 17 ns 25 ns 50 ns 1 µs 170 150 180 170 150 mA max I CCOP (4) Write Dynamic Operating Current 15 ns 17 ns 25 ns 50 ns 1 µs 145 130 120 100 150 145 130 120 100 mA max

  1. During data retention chip select CS

must be held high within VCC to VCC -0.2V.

  1. Output Enable (OE ) should be held high to keep the RAM outputs high imped-

ance, minimizing power dissipation.

  1. During power-up and power-down transitions CS and OE must be kept between
  2. The RAM can begin operation > t R ns after VCC reaches the minimum operation

Figure 1. Data Retention Timing

  1. T AVAV = Read cycle time.

7 AT60142FT

Figure 2. AC Test Loads Waveforms

9 AT60142FT

Figure 5. Write Cycle 3. CS Controlled enced to the active edge of the signal that terminates the write. Data out is high impedance if OE = V IH .

11 AT60142FT

7726A–AERO–07/07

Ordering Information

Note: 1. Contact Atmel for availability. 2. Will be replaced by SMD part number when availabl e. 3. Will be replaced by ESCC part number when availab le. Part Number Temperature Range Speed Package Flow AT60142FT-DC17M-E 25 °C 17 ns/5V tol. FP36.5 Engineering Samples 5962-0520801QXC -55 ° to +125 °C 17 ns/5V tol. FP36.5 QML Q 5962-0520801VXC -55 ° to +125 °C 17 ns/5V tol. FP36.5 QML V 5962R0520801VXC -55 ° to +125 °C 17 ns/5V tol. FP36.5 QML V RHA 930105201 -55 ° to +125 °C 17 ns/5V tol. FP36.5 ESCC AT60142FT-DS17M-E 25 °C 17 ns/5V tol. FP36.5 grounded lid Engineering Sample s 5962-0520801QYC -55 ° to +125 °C 17 ns/5V tol. FP36.5 grounded lid QML Q 5962-0520801VYC -55 ° to +125 °C 17 ns/5V tol. FP36.5 grounded lid QML V 5962R0520801VYC -55 ° to +125 °C 17 ns/5V tol. FP36.5 grounded lid QML V RHA AT60142FT-DS17ESCC (3) -55 ° to +125 °C 17 ns/5V tol. FP36.5 grounded lid ESCC AT60142FT-DD17M-E (1) 25 °C 17 ns/5V tol. Die Engineering Samples AT60142FT-DD17MSV(1) (2) -55 ° to +125 °C 17 ns/5V tol. Die QML V AT60142FT-DS15M-E (1) 25 °C 15 ns/5V tol. FP36.5 grounded lid Engineering Sample s AT60142FT-DS15MMQ (1) (2) -55 ° to +125 °C 15 ns/5V tol. FP36.5 grounded lid QML Q AT60142FT-DS15MSV(1) (2) -55 ° to +125 °C 15 ns/5V tol. FP36.5 grounded lid QML V AT60142FT-DS15MSR (1) (2) -55 ° to +125 °C 15 ns/5V tol. FP36.5 grounded lid QML V RHA AT60142FT-DS15ESCC (3) -55 ° to +125 °C 15 ns/5V tol. FP36.5 grounded lid ESCC AT60142FT-DD15M-E (1) 25 °C 15 ns/5V tol. Die Engineering Samples AT60142FT-DS15MSV -55 ° to +125 °C 15 ns/5V tol. Die QML V

7726A–AERO–07/07 Package Drawings 36-lead Flat Pack (500 Mils) Notes: 1. package DC : lid is NOT connected to GROUND 2. package DS : lid is connected to GROUND

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