DSM2190F4V-15K6 Datasheet PDF - STMicroelectronics
| Part Number | DSM2190F4V-15K6 | |
| Description | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply) | |
| Manufacturers | STMicroelectronics | |
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DSM2190F4V
DSM (Digital Signal Processor System Memory)
For Analog Devices ADSP-2191 DSPs (3.3V Supply)
FEATURES SUMMARY
s Glueless Connection to DSP
– Easily add memory, logic, and I/O to the Exter-
nal Port of ADSP-2191 DSP
s Dual Flash Memories
– Two independent Flash memory arrays for stor-
ing DSP code and data. DSP may access the
two arrays concurrently (read from one while
erasing or writing the other)
– 256K x 8 Main Flash memory divided into 8 sec-
tors (32KByte each)
– Ample storage for booting DSP code/data
upon reset and subsequent code swaps
– Large capacity for data recording
– 32K x 8 Secondary Flash memory divided into 4
sectors (8 KByte each). Multiple uses:
– Small sector size ideal for small data sets,
and calibration or configuration constants
– Store custom start-up code in one or more
sectors and configure DSP to run from exter-
nal memory upon reset (no boot)
– Concatenate Secondary Flash with Main
Flash for total of 288 KBytes
– Each Flash sector can be write protected.
– Built-in programmable address decoding logic
allows mapping individual Flash sectors to any
address boundary
s Up to 16 Multifunction I/O Pins
– Increase total DSP system I/O capability
– I/O controlled by DSP software or PLD logic
s General purpose PLD
– Over 3,000 Gates of PLD with 16 macro cells
– Use for peripheral glue logic to keypads, control
panel, displays, LCDs, and other devices
– Eliminate PLDs and external logic devices
– Create state machines, chip selects, simple
shifters and counters, clock dividers, delays
– Simple PSDsoft ExpressTM software...Free
s Operating Range
– VCC: 3.3V±10%; Temperature: –40oC to +85oC
Figure 1. Packages
PQFP52 (T)
PLCC52 (K)
s In-System Programming (ISP) with JTAG
– Program entire chip in 10-25 seconds with no in-
volvement of the DSP
– Links with ADSP-2191 JTAG debug port
– Eliminate sockets for pre-programmed memory
and logic devices
– ISP allows efficient manufacturing and product
testing supporting Just-In-Time inventory
– Use low-cost FlashLINKTM cable with PC
s Content Security
– Programmable Security Bit blocks access of de-
vice programmers and readers
s Zero-Power Technology
– As low as 25µA standby current
s Packaging
– 52-pin PQFP or 52-pin PLCC
s Flash Memory Speed, Endurance, Retention
– 150 ns, 100K cycles, 15 year retention
September 2002
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DSM2190F4
The two-chip combination of a DSP and a DSM
device is ideal for systems which have limitations
on size, EMI levels, and power consumption. DSM
memory and logic are “zero-power”, meaning they
automatically go to standby between memory ac-
cesses or logic input changes, producing low ac-
tive and standby current consumption, which is
ideal for battery powered products.
A programmable security bit in the DSM protects
its contents from unauthorized viewing and copy-
ing. When set, the security bit will block access of
programming devices (JTAG or others) to the
DSM Flash memories and PLD configuration. The
only way to defeat the security bit is to erase the
entire DSM device, after which the device is blank
and may be used again. The DSP will always have
access to Flash memory contents through the 8-bit
data port even while the security bit is set.
Table 1. DSM2190F4V DSP Memory System Devices
Part Number
Main Flash
Memory
Secondary
Flash
Memory
PLD
I/O
Ports
VCC and I/O
Mem
Speed
Package
Operating
Temp
DSM2190F4VV-
15T6
256KBytes =
8 sectors x
32KByte
32KBytes =
4 sectors x
8KByte
16
macro
-cells
Up to
16
3.3V ±10% 150 ns
52-pin
PQFP
–40oC to
+85oC
DSM2190F4VV-
15K6
256KBytes =
8 sectors x
32KByte
32KBytes =
4 sectors x
8KByte
16
macro
-cells
Up to
16
3.3V ±10% 150 ns
52-pin
PLCC
–40oC to
+85oC
Table 2. Compatible Analog Devices DSP
DSP Part Number
ADSP-2191M
Operating Voltage, VCC
2.5V
I/O Capability
2.5 - 3.6V
Figure 3. PLCC Connections
Figure 4. PQFP Connections
PD2
PD1
PD0
PC7
PC6
PC5
PC4
VCC
GND
PC3
PC2
PC1
PC0
8
9
10
11
12
13
14
15
16
17
18
19
20
46 AD15
45 AD14
44 AD13
43 AD12
42 AD11
41 AD10
40 AD9
39 AD8
38 VCC
37 AD7
36 AD6
35 AD5
34 AD4
AI02857
PD2 1
PD1 2
PD0 3
PC7 4
PC6 5
PC5 6
PC4 7
VCC 8
GND 9
PC3 10
PC2 11
PC1 12
PC0 13
39 AD15
38 AD14
37 AD13
36 AD12
35 AD11
34 AD10
33 AD9
32 AD8
31 VCC
30 AD7
29 AD6
28 AD5
27 AD4
AI02858
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| Information | Total 30 Pages | |
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| DSM2190F4V-15K6 | The function is DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply). STMicroelectronics | |
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