DSM2180F3-90T6 STMicroelectronics, DSM2180F3-90T6 Datasheet - Page 27

• Manufacturer Part Number: DSM2180F3-90T6
• Description: IC FLASH 1MBIT 90NS 52TQFP
• Manufacturer: STMicroelectronics

Specifications of DSM2180F3-90T6

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 1M (128K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-TQFP, 52-VQFP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 5.5V
• Operating Supply Voltage (max): 4.5V
• Mounting: Surface Mount
• Pin Count: 52
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-1321

DECODE PLD (DPLD)
The DPLD, shown in Figure 14, is used for decod-
ing the address for internal and external compo-
nents. The DPLD can be used to generate the
following decode signals:
■
Figure 14. DPLD Logic Array
I /O PORTS (PORT A,B,C)
MCELLAB.FB [7:0] (Feedback)
MCELLBC.FB [7:0] (Feedback)
PG0 - PG7
A [ 15:0 ]
PD [ 2:0 ]
CNTRL [ 2:0 ] ( Read/Write Control Signals)
RESET
RD_BSY
8 Flash memory Sector Select (FS0-FS7)
signals with three product terms each
(INPUTS)
(16)
(16)
(8)
(8)
(8)
(3)
(3)
(1)
(1)
■
■
■
1 internal csiop select for DSM device control
and status registers (csiop is the base address
of the block of 256 byte locations)
1 JTAG Select signal (enables JTAG operations
on Port C when multiplexing JTAG signals with
general I/O signals)
3 external chip select output signals for Port D
pins, each with one product term.
3
3
3
3
3
3
3
3
1
1
1
1
1
CSIOP
JTAGSEL
ECS0
ECS1
ECS2
FS0
FS1
FS7
FS2
FS3
FS5
FS6
FS4
I/O Decoder
Select
JTAG ISP
External Chip Selects
to PORT D
8 Flash Memory
Sector Selects
DSM2180F3
AI04901
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