MCM6946 Motorola, MCM6946 Datasheet
MCM6946
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MCM6946 Summary of contents
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... Static design eliminates the need for external clocks or timing strobes. The MCM6946 is equipped with chip enable (E) and output enable (G) pins, allowing for greater system flexibility and eliminating bus contention problems. Either input, when high, will force the outputs into high–impedance. ...
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... MCM6946 2 BLOCK DIAGRAM ROW MEMORY MATRIX DECODER COLUMN I/O INPUT COLUMN DECODER DATA CONTROL MOTOROLA FAST SRAM ...
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... MCM6946 3 ...
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... Storage Temperature — Plastic NOTE: Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to RECOMMENDED OPER- ATING CONDITIONS. Exposure to higher than recommended voltages for extended periods of time could affect device reliability. MCM6946 4 I/O Pin Cycle Current High–Z — ...
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... Parameter MCM6946–8: t AVAV = 8 ns MCM6946–10: t AVAV = 10 ns MCM6946–12: t AVAV = 12 ns MCM6946–15: t AVAV = 15 ns MCM6946–8: t AVAV = 8 ns MCM6946–10: t AVAV = 10 ns MCM6946–12: t AVAV = 12 ns MCM6946–15: t AVAV = 0 – 0.2 V) Symbol All Inputs Except Clocks and DQs ...
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... On the other hand, responses from the memory are specified from the device point of view. Thus, the access time is shown as a maximum since the device never provides data later than that time. Figure 1. AC Test Load . . . . . . . . . . . . . See Figure 1 MCM6946– Unit Notes N Min Max ...
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... E (CHIP ENABLE) G (OUTPUT ENABLE) HIGH–Z Q (DATA OUT SUPPLY CURRENT I SB MOTOROLA FAST SRAM READ CYCLE 1 (See Note 8) t AVAV t AXQX t AVQV READ CYCLE 2 (See Note 4) t AVAV t ELQV t ELQX t GLQV t GLQX t AVQV DATA VALID t EHQZ t GHQZ DATA VALID MCM6946 7 ...
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... Controlled; See Notes 1, 2, and 3) t AVAV t AVWH t WLWH t WLEH t AVWL t WLQZ MCM6946–15 Min Max Min Max U i Unit N Notes 12 — 15 — — 0 — — 12 — — ...
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... If E goes high coincident with or before W goes high, the output will remain in a high–impedance condition. WRITE CYCLE 2 A (ADDRESS) E (CHIP ENABLE) W (WRITE ENABLE) D (DATA IN) Q (DATA OUT) MCM 6946 Motorola Memory Prefix Part Number Full Part Numbers — MCM6946YJ8 MCM6946YJ8R MCM6946TS8 MCM6946TS8R MOTOROLA FAST SRAM MCM6946–8 MCM6946–10 MCM6946– Min ...
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... –X– VIEW A G 34X MCM6946 10 PACKAGE DIMENSIONS YJ PACKAGE 400 MIL SOJ CASE 893–02 0.015 (0.381 ZONES 18 PLACES NOTE –Y– R/2 R1 36X R 36X N 36X K 0.004 (0.1) T SEATING –T– PLANE ...
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... JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141, 4-32-1 Nishi-Gotanda, Shagawa-ku, Tokyo, Japan. 03-5487-8488 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, CUSTOMER FOCUS CENTER: 1-800-521-6274 22X 0 MILLIMETERS MIN MAX A ––– 1.20 0.05 0.15 0.95 1.05 b 0.30 0.45 c 0.12 0.21 D 18.28 18.54 e 0.80 BSC E 11.56 11.96 10.03 10.29 L 0.40 0. Mfax is a trademark of Motorola, Inc. MCM6946/D MCM6946 11 ...