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MC10H660 bảng dữ liệu(PDF) 1 Page - Motorola, Inc |
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MC10H660 bảng dữ liệu(HTML) 1 Page - Motorola, Inc |
1 / 7 page MOTOROLA SEMICONDUCTOR TECHNICAL DATA 2–121 REV 5 © Motorola, Inc. 1996 3/93 4-Bit ECL/TTL Load Reducing DRAM Driver The MC10H/100H660 is a 4–bit ECL input, translating DRAM address driver, ideally suited for driving TTL compatible DRAM inputs from an ECL system. It is designed for use in high capacity, highly interleaved DRAM memory boards, that directly interface to a high speed, pipelined ECL bus interface, where new operations may be initiated to the board at up to a 50 MHz rate. The latch provides the capability for the memory controller to propagate new addresses to different banks without having to wait for the address timing constraints to be satisfied from a previous memory operation. The dual output fanout reduces input loading from the controller by a factor of two, thus significantly improving board etch propagation delays from the controller, without the need for additional ECL buffering. The H660 features special TTL outputs which do not have an IOS limiting resistor, therefore allowing rapid charging of the load capacitance. Output voltage levels are designed specifically for driving DRAM inputs. The output stages feature separate power and ground pins to isolate output switching noise from internal circuitry, and also to improve simultaneous switching performance. The 10H version is compatible with MECL 10H ECL logic levels. The 100H version is compatible with 100K levels. • High Capacitive Drive Outputs to Drive DRAM Address Inputs • Extra TTL and ECL Power/Ground Pins to Minimize Switching Noise • Dual Supply • 10.7 ns Max. D to Q into 300 pF PIN NAMES PIN FUNCTION OGND[0:3] Output Ground (0V) OVT01, OVT23 Output VCCT (+5.0 V) IGND01, IGND23 Internal TTL Ground (OV) IVT01, IVT23 Internal TTL VCCT (+5.0 V) VEE ECL Neg. Supply (–5.2/ –4.5 V) VCCE ECL Ground (0V) D[0:3] Data Inputs (ECL) Q[0:3]A, Q[0:3]B Data Outputs (TTL levels) LEN Latch Enable (ECL) R Reset (ECL) 1 56 7 8 9 10 11 25 24 23 22 21 20 19 Pinout: 28–Lead PLCC (Top View) 26 27 28 2 3 412 13 14 15 16 17 18 Q1B OGND1 Q1A OVT01 Q0B OGND0 Q0A IVT23 IGND23 VCCE VCCE D3 D2 R MC10H660 MC100H660 FN SUFFIX PLASTIC PACKAGE CASE 776–02 EN LOGIC SYMBOL D ENR Q Q0A OGND0 Q0B D Q1A OGND1 Q1B R Q D EN R Q Q2A OGND2 Q2B D EN R Q Q3A OGND3 Q3B IGND01 IVT01 IVT23 IGND23 OVT01 ECL Inputs DRAM Driver Outputs VEE VCCE D0 D1 D2 D3 LEN R OVT23 D L H X X LEN H H L X R L L L H Q L H Q0 L TRUTH TABLE |
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Mô tả tương tự - MC10H660 |
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