GENERAL DESCRIPTION
The EN25QH64A is a 64 Megabit (8,192K-byte) Serial Flash memory, with advanced write protection mechanisms. The EN25QH64A supports the standard Serial Peripheral Interface (SPI), and a high performance, Quad I/O using SPI pins: Serial Clock, Chip Select, Serial DQ0 (DI) and DQ1(DO), DQ2(WP#) and DQ3(HOLD#). SPI clock frequencies of up to 104MHz are supported allowing equivalent clock rates of 416MHz (104MHz x 4) for Quad Output while using the Quad Output Read instructions. The memory can be programmed 1 to 256 bytes at a time, using the Page Program or Quad Page Program instruction.
The EN25QH64A is designed to allow either single Sector/Block at a time or full chip erase operation. The EN25QH64A can be configured to protect part of the memory as the software protected mode. The device can sustain a minimum of 100K program/erase bytes on each sector or block. 
FEATURES
• Single power supply operation
- Full voltage range: 2.7-3.6 volt
• Serial Interface Architecture
- SPI Compatible: Mode 0 and Mode 3
• 64 M-bit Serial Flash
- 64 M-bit / 8,192 KByte / 32,768 pages
- 256 bytes per programmable page
• Standard or Quad SPI
- Standard SPI: CLK, CS#, DI, DO, WP#, HOLD#
- Quad SPI: CLK, CS#, DQ0, DQ1, DQ2, DQ3
• High performance
- Normal read
  - 83MHz
- Fast read
  - Standard SPI: 104MHz with 1 dummy bytes
  - Quad SPI: 104MHz with 3 dummy bytes
• Burst Modes
- 16/32/64/128 linear burst with wrap-around
- Quad SPI: 104MHz with 3 dummy bytes
• Low power consumption
- 5 mA typical active current
- 1μA typical power down current
• Uniform Sector Architecture:
- 2048 sectors of 4-Kbyte
- 256 blocks of 32-Kbyte
- 128 blocks of 64-Kbyte
- Any sector or block can be erased individually
• Software and Hardware Write Protection:
- Write Protect all or portion of memory via software
- Enable/Disable protection with WP# pin
• High performance program/erase speed
- Page program time: 0.7ms typical
- Sector erase time: 50ms typical
- 32KB Block erase time 200ms typical
- 64KB Block erase time 350ms typical
- Chip erase time: 30 seconds typical
• Write Suspend and Write Resume
• Lockable 512 byte OTP security sector
• Support Serial Flash Discoverable,Parameters (SFDP) signature
• Read Unique ID Number
• Minimum 100K endurance cycle
• Package Options
- 8 pins SOP 200mil body width
- 8 contact VDFN (5x6mm)
- 8 pins PDIP
- 16 pins SOP 300mil body width
- 24 balls TFBGA (6x8mm)
- All Pb-free packages are compliant RoHS,Halogen-Free and REACH.
• Industrial temperature Range