PSD854F2-90JI STMicroelectronics, PSD854F2-90JI Datasheet - Page 43

• Manufacturer Part Number: PSD854F2-90JI
• Description: IC FLASH 2MBIT 90NS 52PLCC
• Manufacturer: STMicroelectronics

Specifications of PSD854F2-90JI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2028-5

MCU BUS INTERFACE
The “no-glue logic” MCU Bus Interface block can
be directly connected to most popular MCUs and
their control signals. Key 8-bit MCUs, with their
Table 16. MCUs and their Control Signals
Note: 1. Unused CNTL2 pin can be configured as CPLD input. Other unused pins (PC7, PD0, PA3-0) can be configured for other I/O func-
8031
80C51XA
80C251
80C251
80198
68HC11
68HC912
Z80
Z8
68330
M37702M2
2. ALE/AS input is optional for MCUs with a non-multiplexed bus
tions.
MCU
8
8
8
8
8
8
8
8
8
8
8
Data Bus
Width
WR
WR
WR
WR
WR
R/W
R/W
WR
R/W
R/W
R/W
CNTL0
Doc ID 10552 Rev 3
RD
RD
PSEN
RD
RD
E
E
RD
DS
DS
E
CNTL1
PSEN
PSEN
(Note
PSEN
(Note
(Note
(Note
(Note
(Note
(Note
(Note
CNTL2
bus types and control signals, are shown in Table
16. The interface type is specified using the PSD-
soft Express Configuration.
1
1
1
1
1
1
1
1
) (Note
) (Note
) (Note
) DBE
) (Note
) (Note
) (Note
) (Note
(Note
(Note
(Note
PC7
1
1
1
1
1
1
1
1
1
1
) ALE
) ALE
) ALE
) ALE
) ALE
) AS
) (Note
) AS
) AS
) ALE
AS
PD0
2
1
) A0
PSD813F2V, PSD854F2V
A0
A4
A0
A0
A0
A0
A0
A0
A0
A0
ADIO0
(Note
A3-A0
(Note
(Note
(Note
(Note
(Note
D3-D0
(Note
(Note
D3-D0
PA3-PA0
1
1
1
1
1
1
1
1
)
)
)
)
)
)
)
)
(Note
(Note
(Note
(Note
(Note
(Note
(Note
D7-D4
(Note
(Note
D7-D4
PA7-PA3
43/109
1
1
1
1
1
1
1
1
1
)
)
)
)
)
)
)
)
)