Part Number: GD25Q20, GD25Q20BxIGx

Function: 2M-bit Serial Flash Memory

Package: SOP, TSSOP, USON 8 Pin Type

Manufacturer: ELM Technology

Image and Pinouts:

 

Description

The GD25Q20B Serial flash supports the standard Serial Peripheral Interface (SPI), and a high performance Dual/Quad output as well as Dual/Quad SPI: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2 (WP#), and I/O3 (HOLD#). SPI clock frequencies of up to 120MHz are supported allowing equivalent clock rates of 240MHz for Dual Output & Dual I/O read command, and 480MHz for Quad output & Quad I/O read command.

Features

1. 2M-bit Serial Flash
(1) 512/256K-byte -Page
(2) 256 bytes per programmable page

2. High Speed Clock Frequency
(1) 120MHz for fast read with 30PF load
(2) Dual I/O Data transfer up to 240Mbits/s
(3) Quad I/O Data transfer up to 480Mbits/s

3. Software/Hardware Write Protection
(1) Write protect all/portion of memory via software
(2) Enable/Disable protection with WP# Pin
(3) Top or Bottom, Sector or Block selection

 

 

Other data sheets are available within the file:

GD25Q20BOIGR, GD25Q20BOIGT, GD25Q20BOIGY, GD25Q20BSIGR

GD25Q20 Datasheet PDF Download

Part Number: A2V64S40

Function: 64M Single Data Rate Synchronous DRAM

Package: TSOP 54 Type

Manufacturer: Powerchip Semicondcutor, Zentel

Images :

 

Description

The A2V64S40 is 67,108,864 bits synchronous high data rate Dynamic RAM organized as 4 x 1,048,576 words by 16 bits. Synchronous design allows precise cycle controls with the use of system clock I/O transactions are possible on every clock cycle. Range of operating frequencies, programmable burst length and programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.

Features

1. 3.3V power supply

2. All inputs are sampled at the positive going

3. LVTTL compatible with multiplexed address edge of the system clock

4. Four banks operation

5. Auto & self refresh

6. 64ms refresh period (4K cycle)

7. Burst read single write operation

Pinout:

Other data sheets are available within the file: A2V64S40CTP, A2V64S40CTP-G6PP

A2V64S40 Datasheet PDF Download

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