NG80386SX-33 AMD [Advanced Micro Devices], NG80386SX-33 Datasheet
NG80386SX-33
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NG80386SX-33 Summary of contents
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FINAL ® Am386 SX/SXL/SXLV High-Performance, Low-Power, Embedded Microprocessors DISTINCTIVE CHARACTERISTICS Member of the E86™ CPU series – 16-bit data bus – 24-bit address bus – 16-Mbyte address range – Long-term stable supply from AMD 40-, 33- and 25-MHz operating speeds ...
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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 elements below 80386 SX Valid Combinations NG80386 SX SXL SXLV ING80386 ...
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BLOCK DIAGRAM Effective Address Bus 32 Effective Address Bus 32 Protection Test Unit Barrel Decode Shifter, and Adder Status Sequencing Flags Multiply/ Divide Control Register ROM ALU File Control Control ALU * – On Am386SXLV only FUNCTIONAL DESCRIPTION True Static ...
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For example, the system could operate at low speeds during inactivity or polling operations. However, upon interrupt, the system clock can be increased up to its maximum speed. After a user-defined time-out period, the system can be returned to a ...
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Description of SMM Operation (Am386SXLV Only) The execution of a System Management Interrupt has four distinct phases: the initiation of the interrupt via SMI, a processor state save, execution of the SMM in- terrupt code, and a processor state restore ...
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Multiple data transfers using the nor- mal ADS and READY pins will occur if the operands are misaligned relative to the effective address used. The UMOV opcodes are ...
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CONNECTION DIAGRAM 100-Lead Plastic Quad Flat Pack (PQFP) Package—Top Side View HLDA 3 HOLD READY ...
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CONNECTION DIAGRAM 100-Lead Plastic Quad Flat Pack (PQFP) Package—Pin Side View W/R 25 D BHE BLE 17 ADS 16 CLK2 ...
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PIN DESIGNATION TABLE (Sorted by Functional Grouping) Address Pin Name Pin No. Pin Name ...
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PIN DESCRIPTIONS A23–A1 Address Bus (Outputs) Outputs physical memory or port I/O addresses. ADS Address Status (Active Low; Output) Indicates that a valid bus cycle definition and address (W/R, D/C, M/IO, BHE, BLE, and A23–A1) are being driven at the ...
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READY Bus Ready (Active Low; Input) Terminates the bus cycle initiated by ADS. RESET Reset (Active High; Input) Suspends any operation in progress and places the Am386SX/SXL/SXLV microprocessor in a known reset state. SMI (Am386SXLV Only) System Management Interrupt (Active ...
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ABSOLUTE MAXIMUM RATINGS Storage Temperature ....................... – +150 C Ambient Temperature Under Bias .... – +125 C Stresses above those listed may cause permanent damage to the device. Functionality at or above these limits is not ...
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ABSOLUTE MAXIMUM RATINGS Storage Temperature ....................... – +150 C Ambient Temperature under Bias .... – +125 C Stresses above those listed may cause permanent damage to the device. Functionality at or above these limits is not ...
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SWITCHING CHARACTERISTICS The switching characteristics given consist of output delays, input setup requirements, and input hold re- quirements. All switching characteristics are relative to the CLK2 rising edge crossing the 2.0-V level. Switching characteristic measurement is defined in Figure 2. ...
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SWITCHING CHARACTERISTICS over COMMERCIAL and INDUSTRIAL operating ranges at 25 MHz V = 5 +100 C (Commercial CASE V = 3.0 V–5 +100 C (Am386SXLV ...
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SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges at 33 MHz V = 5 +100 C CC CASE Symbol Parameter Description Operating Frequency: Am386SX CPU Am386SXL CPU 1 CLK2 Period 2a CLK2 High Time 2b ...
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SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges at 40 MHz V = 5 +100 C (Am386SX only) CC CASE Symbol Parameter Description Operating Frequency 1 CLK2 Period 2 CLK2 High Time 3 CLK2 Low ...
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V IHC CLK2 2 Figure 3. CLK2 Timing (Am386SXLV 25 MHz) t2a t2b V – 0 CLK2 2 Figure 4. CLK2 Timing (Am386SX/SXL 25 and 33 MHz ...
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SWITCHING WAVEFORMS Tx CLK2 READY, SMIRDY* HOLD D15–D0 (Inputs) BUSY, ERROR, IIBEN*, PEREQ, FLT NA SMI*, INTR, NMI * – On Am386SXLV only Am386SX/SXL/SXLV Microprocessors Data Sheet t19, t19s* t20, t20s* t23 ...
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CLK2 + + BHE , BLE BE3–BE0*, LOCK t10, t10s* W/R, M/IO, D/C, ADS, SMIADS* A23–A1 D15–D0 (Outputs) SMI* + HLDA + – On Am386SX/SXL only * – On Am386SXLV only 20 Am386SX/SXL/SXLV Microprocessors Data Sheet ...
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CLK2 W/R t12 D15–D0 Figure 9. Write Data Valid Delay Timing CLK2 W/R t12a D15–D0 Am386SX/SXL/SXLV Microprocessors Data Sheet Min Max Min Valid n Figure 10. Write Data Hold ...
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CLK2 duration if not going to request self-test. 80 CLK2 duration before requesting self-test. CLK2 Reset CLK (Internal) BUSY ERROR CLK2 BHE, BLE, W/R, M/IO, HLDA CLK2 A23–A1, D/C, LOCK ...
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CLK2 FLT Control Valid Valid Data Valid Address Reset SMI Valid Figure 12. Entering and Exiting FLT (Am386SXLV Only CLK2 SMI SMIADS *Once initiated, the system must hold SMI Low until the first SMIADS. At this ...
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Cycle 0 2 CLK2 t9 BHE, BLE, LOCK t11, t11s* W/R, M/IO, D/C, ADS, SMIADS* t7 A23–A1 D15–D0 t14f HLDA SMI* * – On Am386SXLV only Figure 15. Output Float Delay and HLDA and SMI* Valid Delay Timing 24 Am386SX/SXL/SXLV ...
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CLK2 t9 BHE, BLE, LOCK t11, t11s W/R, M/IO, D/C, ADS, SMIADS t7 A23–A1 D15–D0 t14f HLDA t32 SMI Figure 16. Output Float Delay Entering and Exiting FLT (Am386SXLV Only) CLK2 RESET The second internal processor phase following RESET ...
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Output Valid Delay (ns) nom –3 nom –6 nom –9 Note: This graph will not be linear outside the C Figure 18. Typical Output Valid Delay Versus Load Capacitance at Maximum Operating Temperature (C ...
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Output Valid Delay (ns) nom + 3 nom nom –3 Note: This graph will not be linear outside the C Figure 20. Typical Output Valid Delay Versus Load Capacitance at Maximum Operating Temperature (C ...
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DIFFERENCES BETWEEN THE Am386SX/SXL/SXLV AND Am386DX/DXL CPU The following are the major differences between the Am386SX/SXL/SXLV and the Am386DX/DXL CPU. For brevity, throughout this section the Am386SX/SXL/ SXLV CPU is referred to as the SX CPU, and the Am386DX/DXL CPU ...
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PACKAGE THERMAL SPECIFICATIONS The Am386SX/SXL/SXLV processors are specified for operation when T (the case temperature) is within CASE the range +100 C for commercial parts, and –40°C to +100°C for industrial parts. T sured in any ...
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PHYSICAL DIMENSIONS PQB 100 (Plastic Quad Flat Pack, Trimmed and Formed) 0.875 0.885 Pin 100 Pin 1 I.D. Pin 25 Trademarks AMD, the AMD logo, and combinations thereof are trademarks of Advanced Micro Devices, Inc. Am386 is a registered trademark; ...