EZ80F91NA050SC Zilog, EZ80F91NA050SC Datasheet - Page 83
EZ80F91NA050SC
Manufacturer Part Number
EZ80F91NA050SC
Description
IC ACCLAIM MCU 256KB 144-BGA
Manufacturer
Zilog
Series
eZ80® Acclaim!®r
Specifications of EZ80F91NA050SC
Core Processor
Z8
Core Size
8-Bit
Speed
50MHz
Connectivity
Ethernet, I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
144-LBGA
Data Bus Width
8 bit
Maximum Clock Frequency
50 MHz
Data Ram Size
16 KB
Number Of Programmable I/os
32
Number Of Timers
16 Bit
Operating Supply Voltage
3 V to 3.6 V
Mounting Style
SMD/SMT
Height
1.5 mm
Length
13 mm
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Width
13 mm
For Use With
269-4712 - KIT DEV ENCORE 32 SERIES269-4671 - BOARD ZDOTS SBC Z80ACCLAIM PLUS269-4561 - KIT DEV FOR EZ80F91 W/C-COMPILER269-4560 - KIT DEV FOR EZ80F91 W/C-COMPILER
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No RoHS Version Available
Other names
269-3251
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Table 21. Intel Bus Mode Read States—Separate Address and Data Buses
PS019215-0910
STATE T1
STATE T2
The Read cycle begins in State T1. The CPU drives the address onto the address bus and
the associated chip select signal is asserted. The CPU drives the ALE signal High at the
beginning of T1. In the middle of T1, the CPU drives ALE Low to facilitate the latching of the
address.
During State T2, the CPU asserts the RD signal. Depending on the instruction, either the
MREQ or IORQ signal is asserted.
Intel™ Bus Mode—Separate Address and Data Buses
During Read operations with separate address and data buses, the Intel bus mode employs
four states—T1, T2, T3, and T4 as listed in
eZ80 Bus Mode
Signals (Pins)
ADDR[23:0]
DATA[7:0]
INSTRD
MREQ
IORQ
WAIT
WR
RD
Figure 12. Intel Bus Mode Signal and Pin Mapping
Multiplexed
Bus Mode
Controller
Controller
Bus
ADDR[7:0]
Table
21.
Intel Bus
Signal Equvalents
ALE
RD
WR
READY
MREQ
IORQ
ADDR[23:0]
DATA[7:0]
Chip Selects and Wait States
Product Specification
eZ80F91 MCU
74
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