ht82k74e Holtek Semiconductor Inc., ht82k74e Datasheet - Page 17
ht82k74e
Manufacturer Part Number
ht82k74e
Description
27mhz Keyboard/ Mouse Tx 8-bit Mcu
Manufacturer
Holtek Semiconductor Inc.
Datasheet
1.HT82K74E.pdf
(56 pages)
- Current page: 17 of 56
- Download datasheet (343Kb)
Rev. 1.00
Random read
A random read requires a dummy byte write sequence
to load in the data word address which is then clocked
in and acknowledged by the EEPROM. The
microcontroller must then generate another start con-
dition. The microcontroller now initiates a current ad-
dress read by sending a device address with the
read/write select bit high. The EEPROM acknowl-
edges the device address and serially clocks out the
data word. The microcontroller should respond with a
No ACK signal - high - followed by a stop condition.
Refer to Random read timing.
Sequential Read Timing
Random Read Timing
Current Read Timing
Byte Write Timing
17
Sequential read
Sequential reads are initiated by either a current ad-
dress read or a random address read. After the
microcontroller receives a data word, it responds with an
acknowledgment. As long as the EEPROM receives an
acknowledgment, it will continue to increment the data
word address and serially clock out sequential data
words. When the memory address limit is reached, the
data word address will roll over and the sequential read
continues. The sequential read operation is terminated
when the microcontroller responds with a No ACK signal
- high - followed by a stop condition.
HT82K74E/HT82K74EE
December 15, 2009
Related parts for ht82k74e
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ht46r63/ht46c63 -- A/d With Lcd Type 8-bit Mcu
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6221/ht6222 -- Multi-purpose Encoders
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6230 -- Infrared Remote Encoder
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6571 -- Multiple Rs-232 Drivers And Receivers Restricted Products
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ps/2 Mouse Controller
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
I/o Ttl Integration
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82m98a -- 3-key 3d Usb+ps/2 Mouse Controller
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82k68e -- Multimedia Keyboard Encoder 8-bit Otp Mcu
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82v732 -- 60ma Audio Power Amp
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
16-bit Ccd/cis Analog Signal Processor
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
22-memory Tone/pulse Dialer
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht93lc66 -- Cmos 4k 3-wire Serial Eeprom
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
1k/2k/4k-bit Hi2c Interface Serial Eeprom
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6p20x -- 2^24 Otp Encoder
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
High Voltage Regulator
Manufacturer:
Holtek Semiconductor Inc.
Datasheet: