EZ80L92AZ050SG Zilog, EZ80L92AZ050SG Datasheet - Page 67
![IC WEBSERVER 50MHZ 100LQFP](/photos/6/76/67664/269-100-lqfp_sml.jpg)
EZ80L92AZ050SG
Manufacturer Part Number
EZ80L92AZ050SG
Description
IC WEBSERVER 50MHZ 100LQFP
Manufacturer
Zilog
Datasheet
1.EZ80L92AZ020SG.pdf
(231 pages)
Specifications of EZ80L92AZ050SG
Processor Type
eZ80
Features
High Speed, Single-Cycle Instruction-Fetch
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
100-LQFP
Processor Series
EZ80L92x
Core
eZ80
Data Bus Width
8 bit
Program Memory Size
64 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
24
Number Of Timers
6
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Development Tools By Supplier
eZ80L920210ZCO
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-3878
EZ80L92AZ050SG
EZ80L92AZ050SG
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EZ80L92AZ050SG
Manufacturer:
Everlight
Quantity:
12 000
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PS013014-0107
Intel
During Read operations with multiplexed address and data, the Intel
4 states (T1, T2, T3, and T4) as described in
Table 18. Intel
During Write operations with multiplexed address and data, the Intel
4 states (T1, T2, T3, and T4) as described in
Table 19. Intel
STATE T1
STATE T2
STATE T3
STATE T4
STATE T1
STATE T2
STATE T3
STATE T4
®
Bus Mode (Multiplexed Address and Data Bus)
The Read cycle begins in State T1. The CPU drives the address onto the
DATA bus and the associated Chip Select signal is asserted. The CPU
drives the ALE signal High at the beginning of T1. During the middle of T1,
the CPU drives ALE Low to facilitate the latching of the address.
During State T2, the CPU removes the address from the DATA bus and
asserts the RD signal. Depending upon the instruction, either the MREQ or
IORQ signal is asserted.
During State T3, no bus signals are altered. If the external ReadY (WAIT)
pin is driven Low at least one eZ80 system clock cycle prior to the
beginning of State T3, additional WAIT states (T
ReadY pin is driven High.
The CPU latches the Read data at the beginning of State T4. The CPU de-
asserts the RD signal and completes the Intel
The Write cycle begins in State T1. The CPU drives the address onto the
DATA bus and drives the ALE signal High at the beginning of T1. During
the middle of T1, the CPU drives ALE Low to facilitate the latching of the
address.
During State T2, the CPU removes the address from the DATA bus and
drives the Write data onto the DATA bus. The WR signal is asserted to
indicate a Write operation.
During State T3, no bus signals are altered. If the external ReadY (WAIT)
pin is driven Low at least one eZ80 system clock cycle prior to the
beginning of State T3, additional WAIT states (T
ReadY pin is driven High.
The CPU deasserts the Write signal at the beginning of T4 identifying the
end of the Write operation. The CPU holds the data and address buses
through the end of T4. The bus cycle is completed at the end of T4.
®
®
Bus Mode Read States (Multiplexed Address and Data Bus)
Bus Mode Write States (Multiplexed Address and Data Bus)
Table
Table
18.
19.
®
WAIT
Bus Mode cycle.
WAIT
Chip Selects and Wait States
Product Specification
) are asserted until the
) are asserted until the
®
®
Bus Mode employs
Bus Mode employs
eZ80L92 MCU
61
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