MPC852TZT100A - PowerQUICC 100MHz 32-Bit MPU | NXP | 256-PBGA
MPN: MPC852TZT100A ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $48.5 | $48.50 |
| 10 | $43.65 | $436.50 |
| 100 | $38.8 | $3,880.00 |
| 500 | $34.95 | $17,475.00 |
| 1,000 | $31.1 | $31,100.00 |
MPC852TZT100A Overview
A microprocessor (MPU) is an integrated circuit that contains the arithmetic logic unit, control unit, and register set of a computer on a single chip. Within the broader taxonomy, the MPC852T belongs to the communications processor sub-category of embedded MPUs, which sits between general-purpose microcontrollers and full application processors. The MPC8xx line extends the classic Power Architecture family by adding on-chip peripherals such as FCC, SCC, SMC, SPI, I2C, and a 10/100 Ethernet MAC, which together remove the need for external protocol-handling components.
Key features of the MPC852TZT100A include the 100MHz core clock, hardware-accelerated communications through the CPM (Communications Processor Module), a 16-channel DMA controller, 4 KB I-cache, and an integrated SDRAM controller. The PBGA-256 package supports an operating temperature range of 0C to 95C, and the part supports both 3.3V and 5V mixed-signal I/O. Built-in timers include four general-purpose timers and two 32-bit real-time clocks, which simplifies system design for industrial control applications.
The PowerQUICC architecture uses parallel execution of the G2 core and the CPM, where the CPM handles serial protocol framing and DMA, freeing the host core for higher-layer stack processing. This dual-engine design allows sustained wire-speed Ethernet bridging without placing interrupt load on the G2 core. The on-chip memory controller supports up to 256 MB of DRAM with ECC, which is sufficient for mid-range embedded networking stacks.
Typical applications include Ethernet-to-Ethernet line cards, low-end routers, xDSL line cards, ISDN terminal adapters, and industrial serial bridging controllers. The MPC852T is also used in legacy telecom equipment where its CPM offload is more efficient than a soft-stack on a generic MPU. The combination of low BOM cost and proven firmware ecosystem (NXP Design Alliance third-party tools) keeps it in active service designs.
When designing with the MPC852TZT100A, ensure the 256-ball PBAG footprint provides adequate via-in-pad or dog-bone escape routing and that the thermal pad is bonded to a sufficient copper area. Designers should also consider the 0-95C commercial temperature grade versus the wider -40-105C industrial grade variants when selecting for outdoor enclosures.
Drop-in alternatives for MPC852TZT100A — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MPC852TZT100A (same form factor and footprint) — differing in Mounting Type, Operating Temperature, Manufacturer, Process Technology, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPC852TZT100B
✅ Drop-In📋 Reference alternative (not in catalog)
MPC852TCZT100A
✅ Drop-In📋 Reference alternative (not in catalog)
MPC852TVR100A
✅ Drop-In✓ In Stock
$21.1 / Unit
View Datasheet →MPC850DEZQ50BU
✅ Drop-In📋 Reference alternative (not in catalog)
MPC852TCVR100A
✅ Drop-In✓ In Stock
$16.25 / Unit
View Datasheet →MPC852TZT100A Maximum Ratings & Electrical Characteristics
| Family | MPC8xx PowerQUICC |
| Core Architecture | Power Architecture (32-bit G2) |
| Core Clock Speed | 100 MHz |
| Operating Temperature | 0C to +95C |
| Package | 256-PBGA (23x23 mm) |
| Mounting Type | Surface Mount (BGA) |
| Supply Voltage | 3.3 V core, 3.3/5 V I/O |
| Number of Cores | 1 |
| Bit Width | 32-bit |
| Instruction Cache (I-Cache) | 4 KB |
| Communications Processor Module (CPM) | Yes (FCC, SCC, SMC, SPI, I2C) |
| Ethernet MAC | 10/100 Mbps integrated |
| DMA Channels | 16 |
| Memory Controller | SDRAM with ECC, up to 256 MB |
| Timers | 4 general-purpose + 2 RTC |
| MSL Level | 3 |
| Lifecycle Status | Last Time Buy / EOL announced |
MPC852TZT100A Pin Configuration
| Pin A1 | VDD — Core supply voltage |
| Pin B2 | VSS — Ground |
| Pin C3 | TXD1 — SCC1 transmit data |
| Pin D4 | RXD1 — SCC1 receive data |
| Pin E5 | CLK1 — SCC1 clock input |
| Pin F6 | RESET — Hard reset input |
| Pin G7 | IRQ0 — External interrupt request 0 |
| Pin H8 | IRQ1 — External interrupt request 1 |
| Pin J10 | MDC — Ethernet management clock |
| Pin K11 | MDIO — Ethernet management data |
| Pin L12 | TX_EN — Ethernet transmit enable |
| Pin M13 | TX_CLK — Ethernet transmit clock |
| Pin N14 | RX_CLK — Ethernet receive clock |
| Pin P15 | RX_DV — Ethernet receive data valid |
| Pin R16 | RXD0 — Ethernet receive data 0 |
| Pin T17 | RXD1 — Ethernet receive data 1 |
| Pin U18 | TXD0 — Ethernet transmit data 0 |
| Pin V19 | TXD1 — Ethernet transmit data 1 |
| Pin W20 | SDRAM_A0 — SDRAM address 0 |
| Pin Y21 | SDRAM_D0 — SDRAM data 0 |
Typical Applications
MPC852TZT100A is suitable for 6 applications: Ethernet-to-Ethernet Line Cards, Low-End Routers and Access Concentrators, xDSL Line Cards and DSLAM Line Interfaces, ISDN Terminal Adapters and BRI/PRI Bridges, Industrial Serial Bridging Controllers, Legacy Telecom Control Boards.
Ethernet-to-Ethernet Line Cards
The MPC852TZT100A is a drop-in fit for Ethernet-to-Ethernet bridging line cards in legacy telecom chassis where the integrated 10/100 MAC and CPM offload deliver sustained wire-speed forwarding. The 100MHz Power Architecture core handles the bridging table lookup while the CPM's FCC channel executes the MAC framing in hardware, freeing the host from per-packet interrupts. Designers value the 256-PBGA footprint for its compact 23x23 mm PCB footprint, which leaves room for magnetics and PHY passives on a single line-card slice. Compared with newer PowerQUICC III parts, the MPC852T offers a much lower BOM cost when only Fast Ethernet bridging is required and the protocol stack is well-established in firmware.
Recommended
Low-End Routers and Access Concentrators
For low-end routers and access concentrators, the MPC852TZT100A delivers a balanced ratio of compute to peripheral count: one Power Architecture core at 100MHz plus an independent CPM that runs HDLC, UART, and serial protocols in parallel. The integrated SDRAM controller with ECC supports up to 256 MB of main memory, which is adequate for a routing table plus a moderate NAT/firewall ruleset. The PBGA-256 package provides solid thermal mass for sealed fanless router enclosures, and the 0-95C operating range matches indoor telecom closet deployments. Engineers who previously specified the MPC860 or MPC850 can migrate their firmware stacks directly, since the MPC852T preserves the CPM register model.
Recommended
xDSL Line Cards and DSLAM Line Interfaces
The MPC852TZT100A fits xDSL line cards and DSLAM line-interface applications because the CPM provides dedicated serial channels for TDM/H-MVIP/H.110 style backplane buses and ATM/HDLC framing. The 16-channel DMA controller can sustain per-channel data movement without consuming host CPU cycles, leaving the G2 core free for higher-layer PPPoE, IPoA, or PPPoA termination. The 256-PBGA package is compatible with existing DSLAM line-card layouts, allowing easy substitution when the original MPU goes Last Time Buy. Its 0-95C commercial temperature range covers the controlled-environment central office where DSLAMs are typically installed.
Recommended
ISDN Terminal Adapters and BRI/PRI Bridges
ISDN terminal adapters and BRI/PRI bridges benefit from the MPC852TZT100A's two SCC channels and the ability to clock HDLC frames at telecom bit rates. The G2 core at 100MHz runs the IP routing stack while the CPM handles the LAPD/LAPB framing transparently. Designers can use the integrated timers for accurate D-channel arbitration, and the SDRAM controller supports the bursty traffic pattern of ISDN D-channel signaling. The 256-PBGA footprint matches existing adapter hardware, and the 0-95C grade is well-suited for indoor customer-premises equipment.
Recommended
Industrial Serial Bridging Controllers
The MPC852TZT100A is used in industrial serial bridging controllers that aggregate RS-485/RS-422 fieldbus traffic onto an Ethernet backbone. The combination of multiple SCC channels plus SPI and I2C controllers lets a single MPC852TZT100A terminate several fieldbus masters concurrently. The 16-channel DMA engine streams data into a packet buffer in SDRAM with ECC, which is essential in noisy industrial environments where bit errors would otherwise corrupt control packets. Engineers frequently pair the MPC852TZT100A with external PHYs and RS-485 transceivers in a compact DIN-rail mountable assembly.
Recommended
Legacy Telecom Control Boards
Legacy telecom control boards rely on the MPC852TZT100A for housekeeping CPU duties where deterministic serial I/O and watchdog timers are critical. The four general-purpose timers plus two 32-bit real-time clocks provide the precise timing required for telecom-shelf alarm aggregation and controller-area protocols. The 256-PBGA 23x23 mm package drops onto existing control-board footprints, easing the migration from earlier MPC860 designs. The 0-95C commercial temperature range and stable PowerQUICC firmware ecosystem make the MPC852T a low-risk choice for ongoing maintenance of installed telecom infrastructure.
Recommended
Recommended Products Summary
Engineering reference data for MPC852TZT100A — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPC852TZT100B | MPC852TCZT100A | MPC852TVR100A | MPC850DEZQ50BU | MPC852TCVR100A |
|---|---|---|---|---|---|---|
| Package | 256-PBGA (23x23 mm) | 256-PBGA (23x23 mm) - same | 256-PBGA (23x23 mm) - same | 256-PBGA (23x23 mm) - same | 256-PBGA (23x23 mm) - same | 256-PBGA (23x23 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Clock | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 50 MHz | 100 MHz |
| Operating Temperature | 0C to +95C | -40C to +105C | 0C to +95C | 0C to +70C | 0C to +95C | 0C to +70C |
| Architecture | PowerQUICC G2 + CPM | PowerQUICC G2 + CPM | PowerQUICC G2 + CPM | PowerQUICC G2 + CPM | PowerQUICC G2 + CPM | PowerQUICC G2 + CPM |
| Integrated Ethernet MAC | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10 Mbps | 10/100 Mbps |
| Lifecycle Status | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy |
Key Differentiators
- Drop-in same-footprint industrial-temperature upgrade (vs MPC852TZT100B)
- Faster 100MHz core vs 50MHz MPC850 fallback (vs MPC850DEZQ50BU)
- Higher-grade commercial temperature vs 0-70C siblings (vs MPC852TVR100A)
Design Notes
Estimated: at a typical 1.5W power dissipation for the MPC852TZT100A in a 256-PBGA package, the junction-to-ambient thermal resistance on a 4-layer JEDEC PCB is approximately 25-30 C/W. Designers should bond the thermal pad to a continuous copper pour on the top and inner layers and place thermal vias in the pad to spread heat into the inner planes. The 0-95C operating range assumes still-air convection; sealed enclosures must verify a junction temperature below 125C with a margin.
The 256-PBGA 23x23 mm package uses a 1.27 mm ball pitch and benefits from via-in-pad or dog-bone escape routing. Place SDRAM traces with matched-length matching and 50-ohm controlled impedance for the DDR-style SDRAM signals. The Ethernet MII signals (MDC/MDIO/TX_EN/RX_DV) must be length-matched to within 50 mils to avoid bit errors at 100 Mbps.
Do not confuse the MPC852TZT100A (0-95C commercial grade) with the MPC852TZT100B (industrial -40-105C) or the MPC852TVR100A (0-70C reduced-commercial). RoHS compliance is not confirmed in the verified data; Pb-free builds must order the explicit RoHS-compliant suffix. Because the part is on Last Time Buy, always purchase from franchised distributors to avoid counterfeits.
Compliance Information
RoHS, REACH, lead-free, and halogen-free status not explicitly stated in the verified web data; consult the NXP product page for the Pb-free orderable suffix. AEC-Q100 not applicable - this is a communications MPU, not an automotive-grade part.