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FSTD16450MTD データシート(PDF) 1 Page - Fairchild Semiconductor |
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FSTD16450MTD データシート(HTML) 1 Page - Fairchild Semiconductor |
1 / 11 page © 2001 Fairchild Semiconductor Corporation DS500438 www.fairchildsemi.com January 2001 Revised August 2001 FSTD16450 Configurable 4-Bit to 20-Bit Bus Switch with Selectable Level Shifting General Description The Fairchild Universal Bus Switch FSTD16450 provides 4-bit, 5-bit, 8-bit, 10-bit, 16-bit, 20-bit of high-speed CMOS TTL-compatible bus switching. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. The FSTD16450 is designed to allow “customer” configura- tion control of the enable connections. The device is orga- nized as either a 4-bit, 5-bit, 10-bit or 20-bit bus switch. 8- bit and 16-bit configurations are also achievable (see Func- tional Description). The device's bit configuration is chosen through select pin logic. (see Truth Table). When OEx is LOW, Port Ax is connected to Port Bx. When OEx is HIGH, the switch is OPEN. Another key device feature is the addition of a level shifting select pin, “S2”. When S2 is LOW, the device behaves as a standard N-MOS switch. When S2 is HIGH, a diode to VCC is integrated into the circuit allowing for level shifting between 5V inputs and 3.3V outputs. Features s 4 Ω switch connection between two ports s Voltage level shifting s Minimal propagation delay through the switch s Low lCC s Zero bounce in flow-through mode s Control inputs compatible with TTL level s Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA) (Preliminary) Applications Note Select pins S0, S1, S2 are intended to be used as static user configurable control pins. The AC performance of these pins has not been characterized or tested. Switching of these select pins during system operation may tempo- rarily disrupt output logic states and/or enable pin controls. Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Note 1: BGA package available in Tape and Reel only. UHC is a trademark of Fairchild Semiconductor Corporation. Order Number Package Number Package Description FSTD16450GX (Note 1) BGA54A (Preliminary) 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide [Tape and Reel] FSTD16450MTD MTD56 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide |
同様の部品番号 - FSTD16450MTD |
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同様の説明 - FSTD16450MTD |
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