CY7C4421-15AC Cypress Semiconductor Corporation., CY7C4421-15AC Datasheet
CY7C4421-15AC
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CY7C4421-15AC Summary of contents
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... THREE-ST ATE OUTPUT REGISTER Cypress Semiconductor Corporation Document #: 38-06016 Rev. *C CY7C4421/4201/4211/4221 CY7C4231/4241/425164/256/512/1K/2K/4K/ Synchronous FIFOs CY7C4421/4201/4211/4221 • Pb-Free Packages Available Functional Description The CY7C42X1 are high-speed, low-power FIFO memories with clocked Read and Write interfaces. All are 9 bits wide. The CY7C42X1 are pin-compatible to IDT722X1 ...
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... Resets device to empty condition. A reset is required before an initial Read or Write operation after power-up. I When OE is LOW, the FIFO’s data outputs drive the bus to which they are connected HIGH, the FIFO’s outputs are in High-Z (high-impedance) state. CY7C4421/4201/4211/4221 CY7C4231/4241/4251 -15 -25 66.7 ...
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... The contents of the offset registers can be read to the data outputs when WEN2/LD is LOW and both REN1 and REN2 are LOW. LOW-to-HIGH transitions of RCLK Read register contents to the data outputs. Writes and reads should not be preformed simultaneously on the offset registers. CY7C4421/4201/4211/4221 CY7C4231/4241/4251 0–8 Page outputs ...
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... Full Offset (LSB) Reg Default Value = 007h (MSB) (MSB) 000 0000 CY7C4421/4201/4211/4221 CY7C4231/4241/4251 512 × × Empty Offset (LSB) Reg. Empty Offset (LSB) Reg. Default Value = 007h Default Value = 007h (MSB) ...
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... PAF. PAE is synchro- nized to the LOW-to-HIGH transition of WCLK by one flip-flop and is set LOW when the number of unread words in the FIFO is greater than or equal to CY7C4421. (64 – m), CY7C4201 Table 2. Status Flags Number of Words in FIFO CY7C4421 ...
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... REN1 and REN2 synchronized to RCLK, i.e exclusively updated by each rising edge of RCLK. RESET (RS) 9 CY7C42X1 Read Enable 2 (REN2) Used in a Width Expansion Configuration CY7C4421/4201/4211/4221 CY7C4231/4241/4251 RESET (RS) Read CLOCK (RCLK) Read ENABLE 1 (REN1) OUTPUT ENABLE (OE) PROGRAMMABLE (PAE) EMPTY FLAG (EF) #1 CY7C42X1 EF EMPTY FLAG (EF) #2 ...
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... GND OUT OE > – < V < Commercial Industrial Commercial Industrial Description Test Conditions ° MHz 5.0V CC CY7C4421/4201/4211/4221 CY7C4231/4241/4251 Ambient Temperature ° ° +70 C [5] ° ° – +85 C -15 -25 Max. Min. Max. Min. 2.4 2.4 0.4 0.4 V 2.2 V 2.2 ...
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... Equivalent to: THÉ VENIN EQUIVALENT 420Ω OUTPUT -10 Min. Max. 100 2 10 4.5 4.5 3 0 [14 [14 OHZ CY7C4421/4201/4211/4221 CY7C4231/4241/4251 ALL INPUT PULSES 90% 90% 10% 10% ≤ 1.91V -15 -25 Min. Max. Min. Max. 66 ...
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... NO OPERATION t REF [16] t SKEW1 , then FF may not change state until the next WCLK rising edge. SKEW1 , then EF may not change state until the next RCLK rising edge. SKEW1 CY7C4421/4201/4211/4221 CY7C4231/4241/4251 ENH NO OPERATION NO OPERATION t WFF t REF VALID DATA t OHZ ...
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... RSS t RSS t RSF t RSF t RSF D Write) VALID 1 [20] t FRL t SKEW1 t REF t OLZ t OE (maximum When t < minimum specification, t CLK SKEW1 SKEW1 CY7C4421/4201/4211/4221 CY7C4231/4241/4251 t RSR t RSR t RSR [21 (maximum) = either 2*t FRL [19 CLK ...
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... ENS ENH t RCLK t SKEW1 EF REN1, REN2 LOW OE DATA IN OUTPUT REGISTER Q – Document #: 38-06016 Rev. *C [20] FRL t t REF REF t A CY7C4421/4201/4211/4221 CY7C4231/4241/4251 t DS DATAWRITE2 t ENH t ENS t t ENS ENH [20] t FRL t t SKEW1 DATA Read REF Page ...
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... A DATA Read t CLKL t t ENS ENH t t Note ENS ENH 23 [22] t PAE , then PAE may not change state until the next RCLK. CY7C4421/4201/4211/4221 CY7C4231/4241/4251 NO Write [15] t SKEW1 t t WFF WFF t ENH t ENS t A NEXT DATA Read WORDS Note INFIFO ...
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... If a Write is performed on this rising edge of the Write clock, there will be Full – (m – 1) words of the FIFO when PAF goes LOW. 26. PAF offset = m. 27. 64-m words for CY7C4421, 256 – m words in FIFO for CY7C4201, 512 – m words for CY7C4211, 1024 – m words for CY7C4221, 2048 – m words for CY7C4231, 4096 – m words for CY7C4241, 8192 – m words for CY7C4251. ...
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... Switching Waveforms (continued) Read Programmable Registers t CLK t CLKH RCLK t ENS WEN2/LD t ENS REN1, REN2 Q – Document #: 38-06016 Rev. *C CY7C4421/4201/4211/4221 t CLKL t ENH t A UNKNOWN PAE OFFSET LSB CY7C4231/4241/4251 PAF OFFSET MSB PAF OFFSET PAE OFFSET MSB LSB Page ...
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... AMBIENT TEMPERATURE 1. 5.0V CC 1.25 1.00 0.75 0.50 − AMBIENT TEMPERATURE (°C) OUTPUT SINK CURRENT vs. OUTPUT VOLTAGE 160 140 120 100 OUTPUT VOLTAGE (V) CY7C4421/4201/4211/4221 CY7C4231/4241/4251 NORMALIZED SUPPLY CURRENT vs. FREQUENCY 1. 5. 25°C 1. 3.0V IN 0.90 0.80 0.70 0.60 125 FREQUENCY (MHz) TYPICAL t CHANGE vs. A OUTPUT LOADING 40 ...
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... Ordering Information Synchronous FIFO Speed (ns) Ordering Code 10 CY7C4421-10AC CY7C4421-10JC CY7C4421-10JXC 15 CY7C4421-15AC CY7C4421-15JC 256 x 9 Synchronous FIFO Speed (ns) Ordering Code 10 CY7C4201-10AC CY7C4201-10JC 15 CY7C4201-15AC CY7C4201-15AXC CY7C4201-15JC CY7C4201-15JXC 25 CY7C4201-25AC CY7C4201-25JC CY7C4201-25AI 512 x 9 Synchronous FIFO Speed (ns) Ordering Code 10 CY7C4211-10AC CY7C4211-10JC CY7C4211-10AI CY7C4211-10AXI CY7C4211-10JI ...
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... CY7C4251-10JXC CY7C4251-10AI CY7C4251-10AXI 15 CY7C4251-15AC CY7C4251-15AXC CY7C4251-15JC CY7C4251-15JXC 25 CY7C4251-25AC CY7C4251-25JC CY7C4251-25AI Document #: 38-06016 Rev. *C CY7C4421/4201/4211/4221 Package Package Name Type A32 32-lead Thin Quad Flatpack J65 32-lead Plastic Leaded Chip Carrier A32 32-lead Thin Quad Flatpack A32 32-lead Pb-Free Thin Quad Flatpack J65 ...
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... The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. 32-Lead Plastic Leaded Chip Carrier J65 CY7C4421/4201/4211/4221 CY7C4231/4241/4251 51-85063-*B ...
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... Document Title: CY7C4421/4201/4211/4221, CY7C4231/4241/4251 64/256/512/1K/2K/4K/ Synchronous FIFOs Document Number: 38-06016 Issue REV. ECN NO. Date ** 106477 09/10/01 *A 110725 03/20/02 *B 122268 12/26/02 *C 386306 See ECN Document #: 38-06016 Rev. *C Orig. of Change SZV Change from Spec number: 38-00419 to 38-06016 FSG Change Input Leakage current I RBI Power up requirements added to Maximum Ratings Information ...