| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact | |
| TPS2391 | TI | DIP/SOP | 09+ | 现货热卖，全新原装，欢迎来电 | 5180 |
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TPS2391 Datasheet . Bidirectional data strobe [DQ] (x4,x8) Four banks operation . Differential clock inputs(CK and CK) . DLL aligns DQ and DQS transition with CK transition . MRS cycle with address key programs -. Read latency 2, 2.5 (clock) -. Burst length (2, 4, 8) -. Burst type (sequential & interleave) . All inputs except data & DM are sampled at the positive going edge of the system clock(CK) . Data l/0 transactions on both edges of data strobe . Edge aligned data output, center aligned data input . DM for write masking only (x4, x8) . Auto & Self refresh . 7.8us refresh interval(8K/64ms refresh) . Maximum burst refresh cycle : 8 . 60Ball FBGA package TPS2391 Price Filter connectors or transzorbs should be used to reduce the RFI/EMI, protecting the system from static (ESD), and electrical overstress (EOS). A filter connector or capacitor will reduce the ESD pulse by 90% typically. A cable dragged across a carpet and connected to a system can easily be charged to over 25,00 volts. This is a metal to metal contact when the cable is connected to the system (no resistance), currents exceed 80 amps with less than a nanosecond rise time. A transzorb provides two functions, the device capacitance inherently acts as a filter capaci- tor, and the device clamps the ESD and EOS pulses which would pass through the capacitor and destroy the devices. The recommended transzorb for the UC5170C is P6KEIOCA. TPS2391 on stock CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.INCLUSION OF TI PRODUCTSIN SUCH APPLICATIONSIS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK.
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