Cypress CY7C1019CV33 manual Features, Functional Description, Logic Block Diagram

CY7C1019CV33

128K x 8 Static RAM

Features

•Pin and function compatible with CY7C1019BV33

•High speed

— tAA = 10 ns

•CMOS for optimum speed/power

•Data retention at 2.0V

•Center power/ground pinout

•Automatic power-down when deselected

•Easy memory expansion with CE and OE options

•Available in Pb-free and non Pb-free 48-ball VFBGA, 32-pin TSOP II and 400-mil SOJ package

Functional Description

The CY7C1019CV33 is a high-performance CMOS static RAM organized as 131,072 words by 8 bits. Easy memory expansion is provided by an active LOW Chip Enable (CE), an active LOW Output Enable (OE), and tri-state drivers. This

device has an automatic power-down feature that significantly reduces power consumption when deselected.

Writing to the device is accomplished by taking Chip Enable (CE) and Write Enable (WE) inputs LOW. Data on the eight I/O pins (I/O0 through I/O7) is then written into the location specified on the address pins (A0 through A16).

Reading from the device is accomplished by taking Chip Enable (CE) and Output Enable (OE) LOW while forcing Write Enable (WE) HIGH. Under these conditions, the contents of the memory location specified by the address pins will appear on the I/O pins.

The eight input/output pins (I/O0 through I/O7) are placed in a high-impedance state when the device is deselected (CE HIGH), the outputs are disabled (OE HIGH), or during a write operation (CE LOW, and WE LOW).

The CY7C1019CV33 is available in Standard 48-ball FBGA, 32-pin TSOP II and 400-mil-wide SOJ packages

Logic Block Diagram
		INPUT BUFFER			I/O0
A0					I/O1
A1	DECODER				I/O2
A			128K x 8	AMPS
A43					I/O3
2
A				SENSE
A7	ROW		ARRAY		I/O4
A5
A6
A8					I/O5
			COLUMN	POWER	I/O6
CE				DOWN
			DECODER
					I/O7
WE
OE	9	10	11 12 13 14 15 16
	A A A A A A A A

Pin Configuration

SOJ/TSOP II

Top View

A0	1	32	A16
A1	2	31	A15
A2	3	30	A
A3			14
	4	29	A
CE	5	28	13
			OE
I/O0	6	27	I/O
		26	7
I/O1	7		I/O6
VCC	8	25	V
VSS		24	SS
	9		VCC
I/O2	10	23	I/O5
I/O3	11	22	I/O
			4
WE	12	21	A12
A4	13	20	A11
A5	14	19	A10
A6	15	18	A9
A7	16	17	A8

Cypress Semiconductor Corporation	•	198 Champion Court • San Jose, CA 95134-1709	•	408-943-2600
Document #: 38-05130 Rev. *F		Revised August 3, 2006

[+] Feedback